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authorViktor Hofer <viktor.hofer@microsoft.com>2019-03-03 20:55:25 +0300
committerGitHub <noreply@github.com>2019-03-03 20:55:25 +0300
commitf8a8530d0fab6b08254215ef2567f98de14db709 (patch)
treeb934e98f30da8bd5f6a4c79acfbd77a4e83ada38
parente4f010df08e3f831263d7ec9fd71d46c83e97882 (diff)
Project msbuild syntax cleanup (dotnet/corefx#35686)
* Remove license header from non-shipping files * Remove obsolete Project attributes * Remove xml header and remove DefaultTargets Commit migrated from https://github.com/dotnet/corefx/commit/c390ce7df50252e11f5d322276e9d19e046d1332
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1492 files changed, 1241 insertions, 2723 deletions
diff --git a/docs/libraries/coding-guidelines/package-projects.md b/docs/libraries/coding-guidelines/package-projects.md
index d1e33f020e4..c6594d353cf 100644
--- a/docs/libraries/coding-guidelines/package-projects.md
+++ b/docs/libraries/coding-guidelines/package-projects.md
@@ -14,7 +14,6 @@ This is the simplest case. The package project need only reference the single p
Sample `System.Text.Encodings.Web.pkgproj`
```
-<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.props))" />
@@ -33,7 +32,6 @@ These packages need to include placeholders for inbox platforms. They should al
Sample `System.Collections.Concurrent.pkgproj`
```
-<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.props))" />
<ItemGroup>
@@ -62,7 +60,6 @@ Framework specific libraries are effectively the same as the previous example.
Sample System.Net.Security.pkgproj
```
-<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.props))" />
<ItemGroup>
@@ -92,7 +89,6 @@ Sample System.Net.Security.pkgproj
Sample \ref .builds file defining a constant used to filter API that were added on top of the netstandard1.7 ones and are available only in netcoreapp1.1:
```
-<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.props))" />
<PropertyGroup>
@@ -122,8 +118,7 @@ Conditional compilation using the above-mentioned constant (from `ref\System.Net
Sample \src .builds file (in this case the implementation is the same in both netcoreapp1.1 and netstandard1.7):
```
-<?xml version="1.0" encoding="utf-8"?>
-<Project>
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.props))" />
<ItemGroup>
<Project Include="System.Net.Security.csproj">
@@ -151,7 +146,6 @@ These packages need to provide a different platform specific implementation on e
Sample `System.IO.FileSystem.pkgproj`
```
-<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.props))" />
<ItemGroup>
@@ -173,7 +167,6 @@ Sample `System.IO.FileSystem.pkgproj`
`win/System.IO.FileSystem.pkgproj`
```
-<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.props))" />
@@ -202,7 +195,6 @@ Sample `System.IO.FileSystem.pkgproj`
```
`unix/System.IO.FileSystem.pkgproj`
```
-<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.props))" />
diff --git a/eng/CodeAnalysis.targets b/eng/CodeAnalysis.targets
index 36578ba35af..8a585a4e926 100644
--- a/eng/CodeAnalysis.targets
+++ b/eng/CodeAnalysis.targets
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project>
<PropertyGroup>
<!-- Need to keep in sync with Tools.props file. -->
diff --git a/eng/InternalTools.props b/eng/InternalTools.props
index 19f5746b2b0..db0a13dcae1 100644
--- a/eng/InternalTools.props
+++ b/eng/InternalTools.props
@@ -1,5 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Licensed to the .NET Foundation under one or more agreements. The .NET Foundation licenses this file to you under the MIT license. See the LICENSE file in the project root for more information. -->
<Project>
<Import Project="dependencies.props" />
diff --git a/eng/Packaging.props b/eng/Packaging.props
index bfd2e0ed92e..9639db07c41 100644
--- a/eng/Packaging.props
+++ b/eng/Packaging.props
@@ -1,4 +1,4 @@
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<PackageDescriptionFile>$(RepoRoot)pkg/descriptions.json</PackageDescriptionFile>
<PackageLicenseFile>$(RepoRoot)LICENSE.TXT</PackageLicenseFile>
diff --git a/eng/ReferenceAssemblies.props b/eng/ReferenceAssemblies.props
index a7c05d461c7..d1f1cfd6d65 100644
--- a/eng/ReferenceAssemblies.props
+++ b/eng/ReferenceAssemblies.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<IsReferenceAssembly Condition="'$(IsReferenceAssembly)'=='' AND ($(MSBuildProjectFullPath.Contains('\ref\')) OR $(MSBuildProjectFullPath.Contains('/ref/')))">true</IsReferenceAssembly>
diff --git a/eng/Resources.targets b/eng/Resources.targets
index 297d028e11d..5df76a12cd6 100644
--- a/eng/Resources.targets
+++ b/eng/Resources.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<ResourcesSourceFileExtension Condition="'$(MSBuildProjectExtension)' == '.csproj'">.cs</ResourcesSourceFileExtension>
<ResourcesSourceFileExtension Condition="'$(MSBuildProjectExtension)' == '.vbproj'">.vb</ResourcesSourceFileExtension>
diff --git a/eng/blockReflectionAttribute.targets b/eng/blockReflectionAttribute.targets
index b42b0302016..761f637cf52 100644
--- a/eng/blockReflectionAttribute.targets
+++ b/eng/blockReflectionAttribute.targets
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project>
<!--
Defining __BlockReflectionAttribute indicates that the .NET Native toolchain should remove the metadata for all non-public APIs.
diff --git a/eng/codeOptimization.targets b/eng/codeOptimization.targets
index 39bb002af4f..7c90deddadc 100644
--- a/eng/codeOptimization.targets
+++ b/eng/codeOptimization.targets
@@ -1,4 +1,4 @@
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup Condition="'$(ApplyPartialNgenOptimization)' == ''">
<ApplyPartialNgenOptimization Condition="'$(IsReferenceAssembly)' == 'true'">false</ApplyPartialNgenOptimization>
diff --git a/eng/configurations/archgroups.props b/eng/configurations/archgroups.props
index ea31c047079..0a1c73366ec 100644
--- a/eng/configurations/archgroups.props
+++ b/eng/configurations/archgroups.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<ArchGroups Include="x86" />
<ArchGroups Include="x64" />
diff --git a/eng/configurations/configurationgroups.props b/eng/configurations/configurationgroups.props
index 882c3586860..3cef5da5939 100644
--- a/eng/configurations/configurationgroups.props
+++ b/eng/configurations/configurationgroups.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<ConfigurationGroups Include="Debug" />
<ConfigurationGroups Include="Release" />
diff --git a/eng/configurations/osgroups.props b/eng/configurations/osgroups.props
index 55afc3c359d..7f2a49cdd02 100644
--- a/eng/configurations/osgroups.props
+++ b/eng/configurations/osgroups.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<OSGroups Include="Windows_NT">
<Imports>AnyOS</Imports>
diff --git a/eng/configurations/properties.props b/eng/configurations/properties.props
index 50cb3708e1a..0f7876d4b16 100644
--- a/eng/configurations/properties.props
+++ b/eng/configurations/properties.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="osgroups.props"/>
<Import Project="targetgroups.props"/>
<Import Project="configurationgroups.props"/>
diff --git a/eng/configurations/targetgroups.props b/eng/configurations/targetgroups.props
index 946a7babd46..bc9482979de 100644
--- a/eng/configurations/targetgroups.props
+++ b/eng/configurations/targetgroups.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<TargetGroups Include="netcore50">
<TargetFramework>netcore50</TargetFramework>
diff --git a/eng/depProj.targets b/eng/depProj.targets
index 65837dfc719..11b70d94076 100644
--- a/eng/depProj.targets
+++ b/eng/depProj.targets
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
***********************************************************************************************
depProj.targets
diff --git a/eng/dependencies.props b/eng/dependencies.props
index 25f9a57afa4..e4557e6fd04 100644
--- a/eng/dependencies.props
+++ b/eng/dependencies.props
@@ -1,4 +1,4 @@
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<!-- Source of truth for dependency tooling: the commit hash of the dotnet/versions master branch as of the last auto-upgrade. -->
<!-- For detailed explanation of the reference versions see:
diff --git a/eng/dir.traversal.targets b/eng/dir.traversal.targets
index 0af9148603b..c9bbb50c019 100644
--- a/eng/dir.traversal.targets
+++ b/eng/dir.traversal.targets
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project>
<Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.targets))" />
diff --git a/eng/disableUap.targets b/eng/disableUap.targets
index 1a2e0d8e44c..5e41100ef83 100644
--- a/eng/disableUap.targets
+++ b/eng/disableUap.targets
@@ -1,4 +1,4 @@
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Target Name="RemoveUapvNextContent"
Condition="'$(KeepUAPContent)' != 'true'"
DependsOnTargets="GetPackageReport"
diff --git a/eng/illink.targets b/eng/illink.targets
index cc9d02d6334..0953c64ce21 100644
--- a/eng/illink.targets
+++ b/eng/illink.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<TargetsTriggeredByCompilation Condition="'$(DesignTimeBuild)' != 'true'">
$(TargetsTriggeredByCompilation);
diff --git a/eng/referenceFromRuntime.targets b/eng/referenceFromRuntime.targets
index 2df3af10fae..e739943c31e 100644
--- a/eng/referenceFromRuntime.targets
+++ b/eng/referenceFromRuntime.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Target Name="AddReferenceFromRuntimeForTests"
AfterTargets="ResolveAssemblyReferences"
Condition="'$(IsTestProject)'=='true' AND '@(ReferenceFromRuntime)' != ''">
diff --git a/eng/resolveContract.targets b/eng/resolveContract.targets
index eedc7f2f063..d550bca1920 100644
--- a/eng/resolveContract.targets
+++ b/eng/resolveContract.targets
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project>
<PropertyGroup Condition="'$(IsSourceProject)' == 'true'">
<ContractProject Condition="'$(ContractProject)' == ''">$(SourceDir)/$(MSBuildProjectName)/ref/$(MSBuildProjectName).csproj</ContractProject>
diff --git a/eng/versioning.targets b/eng/versioning.targets
index a95906c9e67..ec0ceab21c0 100644
--- a/eng/versioning.targets
+++ b/eng/versioning.targets
@@ -1,4 +1,4 @@
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<GenerateAssemblyInfo Condition="'$(GenerateAssemblyInfo)'==''">true</GenerateAssemblyInfo>
</PropertyGroup>
diff --git a/src/libraries/CodeAnalysis.ruleset b/src/libraries/CodeAnalysis.ruleset
index 8920fd2575a..8384ea42d72 100644
--- a/src/libraries/CodeAnalysis.ruleset
+++ b/src/libraries/CodeAnalysis.ruleset
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<RuleSet Name="Rules for Security Issues" Description="Code analysis rules for Security Issues." ToolsVersion="14.0">
+<RuleSet Name="Rules for Security Issues" Description="Code analysis rules for Security Issues." ToolsVersion="14.0">
<Rules AnalyzerId="Desktop.Analyzers" RuleNamespace="Desktop.Analyzers">
<Rule Id="CA5350" Action="Error" /> <!-- Do not use Weak/Broken cryptographic algorithms -->
<Rule Id="CA5351" Action="Error" />
diff --git a/src/libraries/Common/src/System/Security/Cryptography/Asn1/AsnXml.targets b/src/libraries/Common/src/System/Security/Cryptography/Asn1/AsnXml.targets
index d6774f2da36..83240d82aa8 100644
--- a/src/libraries/Common/src/System/Security/Cryptography/Asn1/AsnXml.targets
+++ b/src/libraries/Common/src/System/Security/Cryptography/Asn1/AsnXml.targets
@@ -1,4 +1,4 @@
-<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<AsnXml />
</PropertyGroup>
diff --git a/src/libraries/Common/src/System/Security/Cryptography/Asn1/asn.xsd b/src/libraries/Common/src/System/Security/Cryptography/Asn1/asn.xsd
index 17fd6e57e53..df069ac188c 100644
--- a/src/libraries/Common/src/System/Security/Cryptography/Asn1/asn.xsd
+++ b/src/libraries/Common/src/System/Security/Cryptography/Asn1/asn.xsd
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xs:schema id="asn"
+<xs:schema id="asn"
targetNamespace="http://schemas.dot.net/asnxml/201808/"
elementFormDefault="qualified"
xmlns="http://schemas.dot.net/asnxml/201808/"
diff --git a/src/libraries/Common/src/System/Security/Cryptography/Asn1/asn.xslt b/src/libraries/Common/src/System/Security/Cryptography/Asn1/asn.xslt
index 64ebf7ab99e..0ad62b9dbd2 100644
--- a/src/libraries/Common/src/System/Security/Cryptography/Asn1/asn.xslt
+++ b/src/libraries/Common/src/System/Security/Cryptography/Asn1/asn.xslt
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xsl:stylesheet version="1.0"
+<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:asn="http://schemas.dot.net/asnxml/201808/"
diff --git a/src/libraries/Common/tests/Configurations.props b/src/libraries/Common/tests/Configurations.props
index 17d3231f8e6..1c0ceb0002a 100644
--- a/src/libraries/Common/tests/Configurations.props
+++ b/src/libraries/Common/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Unix;
diff --git a/src/libraries/Common/tests/Performance/Configurations.props b/src/libraries/Common/tests/Performance/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/Common/tests/Performance/Configurations.props
+++ b/src/libraries/Common/tests/Performance/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/Common/tests/Performance/PerfRunner/Configurations.props b/src/libraries/Common/tests/Performance/PerfRunner/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/Common/tests/Performance/PerfRunner/Configurations.props
+++ b/src/libraries/Common/tests/Performance/PerfRunner/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/Common/tests/Resources/Strings.resx b/src/libraries/Common/tests/Resources/Strings.resx
index 12dadae384c..398f58f4077 100644
--- a/src/libraries/Common/tests/Resources/Strings.resx
+++ b/src/libraries/Common/tests/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/Common/tests/System/Diagnostics/RemoteExecutorConsoleApp/Configurations.props b/src/libraries/Common/tests/System/Diagnostics/RemoteExecutorConsoleApp/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/Common/tests/System/Diagnostics/RemoteExecutorConsoleApp/Configurations.props
+++ b/src/libraries/Common/tests/System/Diagnostics/RemoteExecutorConsoleApp/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/CoreFxNetCloudService.ccproj b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/CoreFxNetCloudService.ccproj
index 43eab917c66..240c4d9789c 100644
--- a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/CoreFxNetCloudService.ccproj
+++ b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/CoreFxNetCloudService.ccproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
<PropertyGroup>
<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
diff --git a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/ServiceConfiguration.Cloud.cscfg b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/ServiceConfiguration.Cloud.cscfg
index b86cecddd28..410b90b4dcc 100644
--- a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/ServiceConfiguration.Cloud.cscfg
+++ b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/ServiceConfiguration.Cloud.cscfg
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<ServiceConfiguration serviceName="CoreFxNetCloudService" xmlns="http://schemas.microsoft.com/ServiceHosting/2008/10/ServiceConfiguration" osFamily="4" osVersion="*" schemaVersion="2015-04.2.6">
<Role name="WebServer">
<Certificates>
diff --git a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/ServiceConfiguration.Local.cscfg b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/ServiceConfiguration.Local.cscfg
index 7b9e8a7aeb4..473d8b0ce2c 100644
--- a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/ServiceConfiguration.Local.cscfg
+++ b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/ServiceConfiguration.Local.cscfg
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<ServiceConfiguration serviceName="CoreFxNetCloudService" xmlns="http://schemas.microsoft.com/ServiceHosting/2008/10/ServiceConfiguration" osFamily="4" osVersion="*" schemaVersion="2015-04.2.6">
<Role name="WebServer">
<Certificates>
diff --git a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/ServiceDefinition.csdef b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/ServiceDefinition.csdef
index ca934aa34d1..66e00f2fd78 100644
--- a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/ServiceDefinition.csdef
+++ b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/ServiceDefinition.csdef
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ServiceDefinition name="CoreFxNetCloudService" xmlns="http://schemas.microsoft.com/ServiceHosting/2008/10/ServiceDefinition" schemaVersion="2015-04.2.6">
+<ServiceDefinition name="CoreFxNetCloudService" xmlns="http://schemas.microsoft.com/ServiceHosting/2008/10/ServiceDefinition" schemaVersion="2015-04.2.6">
<WebRole name="WebServer" vmsize="Medium">
<Certificates>
<Certificate name="CoreFxNetCertificate" storeLocation="LocalMachine" storeName="My" />
diff --git a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/WebServerContent/diagnostics.wadcfgx b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/WebServerContent/diagnostics.wadcfgx
index 4ff2f0a5be9..8ca93efc6eb 100644
--- a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/WebServerContent/diagnostics.wadcfgx
+++ b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/WebServerContent/diagnostics.wadcfgx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<DiagnosticsConfiguration xmlns="http://schemas.microsoft.com/ServiceHosting/2010/10/DiagnosticsConfiguration">
+<DiagnosticsConfiguration xmlns="http://schemas.microsoft.com/ServiceHosting/2010/10/DiagnosticsConfiguration">
<PublicConfig>
<WadCfg>
<DiagnosticMonitorConfiguration overallQuotaInMB="4096">
diff --git a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/ecf/WebServerContent/diagnostics.wadcfgx b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/ecf/WebServerContent/diagnostics.wadcfgx
index b85e92a5fba..df40d84e9c3 100644
--- a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/ecf/WebServerContent/diagnostics.wadcfgx
+++ b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/CoreFxNetCloudService/ecf/WebServerContent/diagnostics.wadcfgx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<DiagnosticsConfiguration xmlns="http://schemas.microsoft.com/ServiceHosting/2010/10/DiagnosticsConfiguration">
+<DiagnosticsConfiguration xmlns="http://schemas.microsoft.com/ServiceHosting/2010/10/DiagnosticsConfiguration">
<PublicConfig xmlns="http://schemas.microsoft.com/ServiceHosting/2010/10/DiagnosticsConfiguration">
<WadCfg>
<DiagnosticMonitorConfiguration overallQuotaInMB="4096">
diff --git a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/WebServer/Configurations.props b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/WebServer/Configurations.props
index 7a6622ea869..3ae4f4ddb4b 100644
--- a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/WebServer/Configurations.props
+++ b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/WebServer/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
<!-- Setting BuildConfiguration to empty in order to skip the build of this project -->
diff --git a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/WebServer/Web.Debug.config b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/WebServer/Web.Debug.config
index 2e302f9f954..392bd6ae165 100644
--- a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/WebServer/Web.Debug.config
+++ b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/WebServer/Web.Debug.config
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!-- For more information on using web.config transformation visit http://go.microsoft.com/fwlink/?LinkId=125889 -->
diff --git a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/WebServer/Web.Release.config b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/WebServer/Web.Release.config
index c35844462ba..eac2ffb30d7 100644
--- a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/WebServer/Web.Release.config
+++ b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/WebServer/Web.Release.config
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!-- For more information on using web.config transformation visit http://go.microsoft.com/fwlink/?LinkId=125889 -->
diff --git a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/WebServer/WebServer.csproj b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/WebServer/WebServer.csproj
index 8d4654d7d86..78aa99045a6 100644
--- a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/WebServer/WebServer.csproj
+++ b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/WebServer/WebServer.csproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="..\packages\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.1.0.0\build\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.props" Condition="Exists('..\packages\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.1.0.0\build\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.props')" />
<Import Project="..\packages\Microsoft.Net.Compilers.1.0.0\build\Microsoft.Net.Compilers.props" Condition="Exists('..\packages\Microsoft.Net.Compilers.1.0.0\build\Microsoft.Net.Compilers.props')" />
<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
diff --git a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/WebServer/packages.config b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/WebServer/packages.config
index 8bc1d558d2b..d0a39047efb 100644
--- a/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/WebServer/packages.config
+++ b/src/libraries/Common/tests/System/Net/Prerequisites/Servers/CoreFxNetCloudService/WebServer/packages.config
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<packages>
+<packages>
<package id="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" version="1.0.0" targetFramework="net452" />
<package id="Microsoft.Data.Edm" version="5.8.4" targetFramework="net452" />
<package id="Microsoft.Data.OData" version="5.8.4" targetFramework="net452" />
diff --git a/src/libraries/Common/tests/System/Xml/BaseLibManaged/Configurations.props b/src/libraries/Common/tests/System/Xml/BaseLibManaged/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/Common/tests/System/Xml/BaseLibManaged/Configurations.props
+++ b/src/libraries/Common/tests/System/Xml/BaseLibManaged/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/Common/tests/System/Xml/ModuleCore/Configurations.props b/src/libraries/Common/tests/System/Xml/ModuleCore/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/Common/tests/System/Xml/ModuleCore/Configurations.props
+++ b/src/libraries/Common/tests/System/Xml/ModuleCore/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/Common/tests/System/Xml/XPath/TestData/Single_byte_problem_chars_b.xml b/src/libraries/Common/tests/System/Xml/XPath/TestData/Single_byte_problem_chars_b.xml
index 2ac831e004a..15132370c3a 100644
--- a/src/libraries/Common/tests/System/Xml/XPath/TestData/Single_byte_problem_chars_b.xml
+++ b/src/libraries/Common/tests/System/Xml/XPath/TestData/Single_byte_problem_chars_b.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
8-bit Problem Characters
<V>öÜß</V>
<V>© ®</V>
diff --git a/src/libraries/Common/tests/System/Xml/XmlCoreTest/Configurations.props b/src/libraries/Common/tests/System/Xml/XmlCoreTest/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/Common/tests/System/Xml/XmlCoreTest/Configurations.props
+++ b/src/libraries/Common/tests/System/Xml/XmlCoreTest/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/Common/tests/System/Xml/XmlDiff/Configurations.props b/src/libraries/Common/tests/System/Xml/XmlDiff/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/Common/tests/System/Xml/XmlDiff/Configurations.props
+++ b/src/libraries/Common/tests/System/Xml/XmlDiff/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/Common/tests/Tests.props b/src/libraries/Common/tests/Tests.props
index f704de23863..523cdbd598e 100644
--- a/src/libraries/Common/tests/Tests.props
+++ b/src/libraries/Common/tests/Tests.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<CommonPath>$(MSBuildThisFileDirectory)</CommonPath>
</PropertyGroup>
diff --git a/src/libraries/CoreFx.Private.TestUtilities/Directory.Build.props b/src/libraries/CoreFx.Private.TestUtilities/Directory.Build.props
index de6d9bff47f..c5ab443b588 100644
--- a/src/libraries/CoreFx.Private.TestUtilities/Directory.Build.props
+++ b/src/libraries/CoreFx.Private.TestUtilities/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>1.0.1.0</AssemblyVersion>
diff --git a/src/libraries/CoreFx.Private.TestUtilities/pkg/CoreFx.Private.TestUtilities.pkgproj b/src/libraries/CoreFx.Private.TestUtilities/pkg/CoreFx.Private.TestUtilities.pkgproj
index 3749cb67199..791dee1c043 100644
--- a/src/libraries/CoreFx.Private.TestUtilities/pkg/CoreFx.Private.TestUtilities.pkgproj
+++ b/src/libraries/CoreFx.Private.TestUtilities/pkg/CoreFx.Private.TestUtilities.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="15.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\CoreFx.Private.TestUtilities.csproj">
diff --git a/src/libraries/CoreFx.Private.TestUtilities/ref/Configurations.props b/src/libraries/CoreFx.Private.TestUtilities/ref/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/CoreFx.Private.TestUtilities/ref/Configurations.props
+++ b/src/libraries/CoreFx.Private.TestUtilities/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/CoreFx.Private.TestUtilities/src/Configurations.props b/src/libraries/CoreFx.Private.TestUtilities/src/Configurations.props
index 6fcb3a2e8a6..80a36c009e4 100644
--- a/src/libraries/CoreFx.Private.TestUtilities/src/Configurations.props
+++ b/src/libraries/CoreFx.Private.TestUtilities/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/CoreFx.Private.TestUtilities/tests/Configurations.props b/src/libraries/CoreFx.Private.TestUtilities/tests/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/CoreFx.Private.TestUtilities/tests/Configurations.props
+++ b/src/libraries/CoreFx.Private.TestUtilities/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/Directory.Build.props b/src/libraries/Directory.Build.props
index 27717c18de3..6653ddf2217 100644
--- a/src/libraries/Directory.Build.props
+++ b/src/libraries/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<EnableDefaultItems>false</EnableDefaultItems>
diff --git a/src/libraries/Directory.Build.targets b/src/libraries/Directory.Build.targets
index 52981adae3d..49cde574fb1 100644
--- a/src/libraries/Directory.Build.targets
+++ b/src/libraries/Directory.Build.targets
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project InitialTargets="AddSkipGetTargetFrameworkToProjectReferences">
<PropertyGroup>
<!-- Reset these properties back to blank, since they are defaulted by Microsoft.NET.Sdk -->
diff --git a/src/libraries/Microsoft.CSharp/Directory.Build.props b/src/libraries/Microsoft.CSharp/Directory.Build.props
index 472e418a974..9162773bfdc 100644
--- a/src/libraries/Microsoft.CSharp/Directory.Build.props
+++ b/src/libraries/Microsoft.CSharp/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.4.0</AssemblyVersion>
diff --git a/src/libraries/Microsoft.CSharp/pkg/Microsoft.CSharp.pkgproj b/src/libraries/Microsoft.CSharp/pkg/Microsoft.CSharp.pkgproj
index 01f313e3cb1..fa5eeffcc97 100644
--- a/src/libraries/Microsoft.CSharp/pkg/Microsoft.CSharp.pkgproj
+++ b/src/libraries/Microsoft.CSharp/pkg/Microsoft.CSharp.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\Microsoft.CSharp.csproj">
diff --git a/src/libraries/Microsoft.CSharp/ref/Configurations.props b/src/libraries/Microsoft.CSharp/ref/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/Microsoft.CSharp/ref/Configurations.props
+++ b/src/libraries/Microsoft.CSharp/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/Microsoft.CSharp/src/Configurations.props b/src/libraries/Microsoft.CSharp/src/Configurations.props
index 77e29493b0e..aee5c900a4d 100644
--- a/src/libraries/Microsoft.CSharp/src/Configurations.props
+++ b/src/libraries/Microsoft.CSharp/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.de.xlf b/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.de.xlf
index f2350e0aae6..3f030fd1ef8 100644
--- a/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.de.xlf
+++ b/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.de.xlf
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xliff version="1.2" xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
+<xliff version="1.2" xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
<file datatype="xml" source-language="en-US" target-language="de" original="MICROSOFT.CSHARP/RESOURCES/STRINGS.RESX" tool-id="MultilingualAppToolkit" product-name="n/a" product-version="n/a" build-num="n/a">
<header>
<tool tool-id="MultilingualAppToolkit" tool-name="Multilingual App Toolkit" tool-version="4.0.1387.0" tool-company="Microsoft" />
diff --git a/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.es.xlf b/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.es.xlf
index f5128c16afb..53ab8a18ecb 100644
--- a/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.es.xlf
+++ b/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.es.xlf
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xliff version="1.2" xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
+<xliff version="1.2" xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
<file datatype="xml" source-language="en-US" target-language="es" original="MICROSOFT.CSHARP/RESOURCES/STRINGS.RESX" tool-id="MultilingualAppToolkit" product-name="n/a" product-version="n/a" build-num="n/a">
<header>
<tool tool-id="MultilingualAppToolkit" tool-name="Multilingual App Toolkit" tool-version="4.0.1387.0" tool-company="Microsoft" />
diff --git a/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.fr.xlf b/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.fr.xlf
index 25c37d05440..0801eab4e54 100644
--- a/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.fr.xlf
+++ b/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.fr.xlf
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xliff version="1.2" xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
+<xliff version="1.2" xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
<file datatype="xml" source-language="en-US" target-language="fr" original="MICROSOFT.CSHARP/RESOURCES/STRINGS.RESX" tool-id="MultilingualAppToolkit" product-name="n/a" product-version="n/a" build-num="n/a">
<header>
<tool tool-id="MultilingualAppToolkit" tool-name="Multilingual App Toolkit" tool-version="4.0.1387.0" tool-company="Microsoft" />
diff --git a/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.it.xlf b/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.it.xlf
index eb6fe0ba866..892ee9ebe84 100644
--- a/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.it.xlf
+++ b/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.it.xlf
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xliff version="1.2" xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
+<xliff version="1.2" xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
<file datatype="xml" source-language="en-US" target-language="it" original="MICROSOFT.CSHARP/RESOURCES/STRINGS.RESX" tool-id="MultilingualAppToolkit" product-name="n/a" product-version="n/a" build-num="n/a">
<header>
<tool tool-id="MultilingualAppToolkit" tool-name="Multilingual App Toolkit" tool-version="4.0.1387.0" tool-company="Microsoft" />
diff --git a/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.ja.xlf b/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.ja.xlf
index 9e6c29c4b0f..3caea15ebc8 100644
--- a/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.ja.xlf
+++ b/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.ja.xlf
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xliff version="1.2" xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
+<xliff version="1.2" xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
<file datatype="xml" source-language="en-US" target-language="ja" original="MICROSOFT.CSHARP/RESOURCES/STRINGS.RESX" tool-id="MultilingualAppToolkit" product-name="n/a" product-version="n/a" build-num="n/a">
<header>
<tool tool-id="MultilingualAppToolkit" tool-name="Multilingual App Toolkit" tool-version="4.0.1387.0" tool-company="Microsoft" />
diff --git a/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.ko.xlf b/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.ko.xlf
index 2fcdbc47dcb..17869b19b0a 100644
--- a/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.ko.xlf
+++ b/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.ko.xlf
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xliff version="1.2" xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
+<xliff version="1.2" xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
<file datatype="xml" source-language="en-US" target-language="ko" original="MICROSOFT.CSHARP/RESOURCES/STRINGS.RESX" tool-id="MultilingualAppToolkit" product-name="n/a" product-version="n/a" build-num="n/a">
<header>
<tool tool-id="MultilingualAppToolkit" tool-name="Multilingual App Toolkit" tool-version="4.0.1387.0" tool-company="Microsoft" />
diff --git a/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.ru.xlf b/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.ru.xlf
index c4c5974901d..cb80c34e81d 100644
--- a/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.ru.xlf
+++ b/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.ru.xlf
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xliff version="1.2" xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
+<xliff version="1.2" xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
<file datatype="xml" source-language="en-US" target-language="ru" original="MICROSOFT.CSHARP/RESOURCES/STRINGS.RESX" tool-id="MultilingualAppToolkit" product-name="n/a" product-version="n/a" build-num="n/a">
<header>
<tool tool-id="MultilingualAppToolkit" tool-name="Multilingual App Toolkit" tool-version="4.0.1387.0" tool-company="Microsoft" />
diff --git a/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.zh-Hans.xlf b/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.zh-Hans.xlf
index 17983cffcc2..f4041b65f71 100644
--- a/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.zh-Hans.xlf
+++ b/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.zh-Hans.xlf
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xliff version="1.2" xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
+<xliff version="1.2" xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
<file datatype="xml" source-language="en-US" target-language="zh-Hans" original="MICROSOFT.CSHARP/RESOURCES/STRINGS.RESX" tool-id="MultilingualAppToolkit" product-name="n/a" product-version="n/a" build-num="n/a">
<header>
<tool tool-id="MultilingualAppToolkit" tool-name="Multilingual App Toolkit" tool-version="4.0.1387.0" tool-company="Microsoft" />
diff --git a/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.zh-Hant.xlf b/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.zh-Hant.xlf
index cb8b3424222..54fd05e4457 100644
--- a/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.zh-Hant.xlf
+++ b/src/libraries/Microsoft.CSharp/src/MultilingualResources/Microsoft.CSharp.zh-Hant.xlf
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xliff version="1.2" xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
+<xliff version="1.2" xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
<file datatype="xml" source-language="en-US" target-language="zh-Hant" original="MICROSOFT.CSHARP/RESOURCES/STRINGS.RESX" tool-id="MultilingualAppToolkit" product-name="n/a" product-version="n/a" build-num="n/a">
<header>
<tool tool-id="MultilingualAppToolkit" tool-name="Multilingual App Toolkit" tool-version="4.0.1387.0" tool-company="Microsoft" />
diff --git a/src/libraries/Microsoft.CSharp/src/Resources/Strings.de.resx b/src/libraries/Microsoft.CSharp/src/Resources/Strings.de.resx
index 38d09851f47..b0d7654ee17 100644
--- a/src/libraries/Microsoft.CSharp/src/Resources/Strings.de.resx
+++ b/src/libraries/Microsoft.CSharp/src/Resources/Strings.de.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<resheader name="resmimetype">
<value>text/microsoft-resx</value>
</resheader>
diff --git a/src/libraries/Microsoft.CSharp/src/Resources/Strings.es.resx b/src/libraries/Microsoft.CSharp/src/Resources/Strings.es.resx
index 2ecf6454cb4..5d52e7921f1 100644
--- a/src/libraries/Microsoft.CSharp/src/Resources/Strings.es.resx
+++ b/src/libraries/Microsoft.CSharp/src/Resources/Strings.es.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<resheader name="resmimetype">
<value>text/microsoft-resx</value>
</resheader>
diff --git a/src/libraries/Microsoft.CSharp/src/Resources/Strings.fr.resx b/src/libraries/Microsoft.CSharp/src/Resources/Strings.fr.resx
index 4879b314dcb..f17f30b1343 100644
--- a/src/libraries/Microsoft.CSharp/src/Resources/Strings.fr.resx
+++ b/src/libraries/Microsoft.CSharp/src/Resources/Strings.fr.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<resheader name="resmimetype">
<value>text/microsoft-resx</value>
</resheader>
diff --git a/src/libraries/Microsoft.CSharp/src/Resources/Strings.it.resx b/src/libraries/Microsoft.CSharp/src/Resources/Strings.it.resx
index 4c215fcd652..9a6f5b39e4c 100644
--- a/src/libraries/Microsoft.CSharp/src/Resources/Strings.it.resx
+++ b/src/libraries/Microsoft.CSharp/src/Resources/Strings.it.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<resheader name="resmimetype">
<value>text/microsoft-resx</value>
</resheader>
diff --git a/src/libraries/Microsoft.CSharp/src/Resources/Strings.ja.resx b/src/libraries/Microsoft.CSharp/src/Resources/Strings.ja.resx
index 3807dae9958..49105ba018d 100644
--- a/src/libraries/Microsoft.CSharp/src/Resources/Strings.ja.resx
+++ b/src/libraries/Microsoft.CSharp/src/Resources/Strings.ja.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<resheader name="resmimetype">
<value>text/microsoft-resx</value>
</resheader>
diff --git a/src/libraries/Microsoft.CSharp/src/Resources/Strings.ko.resx b/src/libraries/Microsoft.CSharp/src/Resources/Strings.ko.resx
index 609342acc16..1feb81cae3b 100644
--- a/src/libraries/Microsoft.CSharp/src/Resources/Strings.ko.resx
+++ b/src/libraries/Microsoft.CSharp/src/Resources/Strings.ko.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<resheader name="resmimetype">
<value>text/microsoft-resx</value>
</resheader>
diff --git a/src/libraries/Microsoft.CSharp/src/Resources/Strings.resx b/src/libraries/Microsoft.CSharp/src/Resources/Strings.resx
index 6eee65a87e7..851a8493b49 100644
--- a/src/libraries/Microsoft.CSharp/src/Resources/Strings.resx
+++ b/src/libraries/Microsoft.CSharp/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/Microsoft.CSharp/src/Resources/Strings.ru.resx b/src/libraries/Microsoft.CSharp/src/Resources/Strings.ru.resx
index 78b66c55fb6..bec63aad503 100644
--- a/src/libraries/Microsoft.CSharp/src/Resources/Strings.ru.resx
+++ b/src/libraries/Microsoft.CSharp/src/Resources/Strings.ru.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<resheader name="resmimetype">
<value>text/microsoft-resx</value>
</resheader>
diff --git a/src/libraries/Microsoft.CSharp/src/Resources/Strings.zh-Hans.resx b/src/libraries/Microsoft.CSharp/src/Resources/Strings.zh-Hans.resx
index 65ecb7fc021..32aa4e0a62f 100644
--- a/src/libraries/Microsoft.CSharp/src/Resources/Strings.zh-Hans.resx
+++ b/src/libraries/Microsoft.CSharp/src/Resources/Strings.zh-Hans.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<resheader name="resmimetype">
<value>text/microsoft-resx</value>
</resheader>
diff --git a/src/libraries/Microsoft.CSharp/src/Resources/Strings.zh-Hant.resx b/src/libraries/Microsoft.CSharp/src/Resources/Strings.zh-Hant.resx
index 0517ad500ed..5d0e3a634bf 100644
--- a/src/libraries/Microsoft.CSharp/src/Resources/Strings.zh-Hant.resx
+++ b/src/libraries/Microsoft.CSharp/src/Resources/Strings.zh-Hant.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<resheader name="resmimetype">
<value>text/microsoft-resx</value>
</resheader>
diff --git a/src/libraries/Microsoft.CSharp/tests/Configurations.props b/src/libraries/Microsoft.CSharp/tests/Configurations.props
index 271a4be4c93..38a2a87a19e 100644
--- a/src/libraries/Microsoft.CSharp/tests/Configurations.props
+++ b/src/libraries/Microsoft.CSharp/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/Microsoft.Diagnostics.Tracing.EventSource.Redist/Directory.Build.props b/src/libraries/Microsoft.Diagnostics.Tracing.EventSource.Redist/Directory.Build.props
index 8bd234dac14..ffff611f7ba 100644
--- a/src/libraries/Microsoft.Diagnostics.Tracing.EventSource.Redist/Directory.Build.props
+++ b/src/libraries/Microsoft.Diagnostics.Tracing.EventSource.Redist/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<PackageVersion>2.1.0</PackageVersion>
diff --git a/src/libraries/Microsoft.Diagnostics.Tracing.EventSource.Redist/pkg/Microsoft.Diagnostics.Tracing.EventSource.Redist.pkgproj b/src/libraries/Microsoft.Diagnostics.Tracing.EventSource.Redist/pkg/Microsoft.Diagnostics.Tracing.EventSource.Redist.pkgproj
index f13488f3158..dea1571c993 100644
--- a/src/libraries/Microsoft.Diagnostics.Tracing.EventSource.Redist/pkg/Microsoft.Diagnostics.Tracing.EventSource.Redist.pkgproj
+++ b/src/libraries/Microsoft.Diagnostics.Tracing.EventSource.Redist/pkg/Microsoft.Diagnostics.Tracing.EventSource.Redist.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
diff --git a/src/libraries/Microsoft.Diagnostics.Tracing.EventSource.Redist/src/Configurations.props b/src/libraries/Microsoft.Diagnostics.Tracing.EventSource.Redist/src/Configurations.props
index fbe03a38dc6..f592aee34ee 100644
--- a/src/libraries/Microsoft.Diagnostics.Tracing.EventSource.Redist/src/Configurations.props
+++ b/src/libraries/Microsoft.Diagnostics.Tracing.EventSource.Redist/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<PackageConfigurations>
net461-Windows_NT;
diff --git a/src/libraries/Microsoft.Diagnostics.Tracing.EventSource.Redist/src/Resources/Strings.resx b/src/libraries/Microsoft.Diagnostics.Tracing.EventSource.Redist/src/Resources/Strings.resx
index 498fcb5070a..bf2f61e56bd 100644
--- a/src/libraries/Microsoft.Diagnostics.Tracing.EventSource.Redist/src/Resources/Strings.resx
+++ b/src/libraries/Microsoft.Diagnostics.Tracing.EventSource.Redist/src/Resources/Strings.resx
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/Microsoft.Diagnostics.Tracing.EventSource.Redist/tests/Configurations.props b/src/libraries/Microsoft.Diagnostics.Tracing.EventSource.Redist/tests/Configurations.props
index 064de9fd71e..49ac1a3ca38 100644
--- a/src/libraries/Microsoft.Diagnostics.Tracing.EventSource.Redist/tests/Configurations.props
+++ b/src/libraries/Microsoft.Diagnostics.Tracing.EventSource.Redist/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netfx;
diff --git a/src/libraries/Microsoft.IO.Redist/Directory.Build.props b/src/libraries/Microsoft.IO.Redist/Directory.Build.props
index aee32419e30..2bf586c0917 100644
--- a/src/libraries/Microsoft.IO.Redist/Directory.Build.props
+++ b/src/libraries/Microsoft.IO.Redist/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
diff --git a/src/libraries/Microsoft.IO.Redist/pkg/Microsoft.IO.Redist.pkgproj b/src/libraries/Microsoft.IO.Redist/pkg/Microsoft.IO.Redist.pkgproj
index c8c8882fc2f..891ad82b2b2 100644
--- a/src/libraries/Microsoft.IO.Redist/pkg/Microsoft.IO.Redist.pkgproj
+++ b/src/libraries/Microsoft.IO.Redist/pkg/Microsoft.IO.Redist.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\src\Microsoft.IO.Redist.csproj">
diff --git a/src/libraries/Microsoft.IO.Redist/src/Configurations.props b/src/libraries/Microsoft.IO.Redist/src/Configurations.props
index 4c28b028939..c535e27185f 100644
--- a/src/libraries/Microsoft.IO.Redist/src/Configurations.props
+++ b/src/libraries/Microsoft.IO.Redist/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netfx;
diff --git a/src/libraries/Microsoft.IO.Redist/src/Resources/Strings.resx b/src/libraries/Microsoft.IO.Redist/src/Resources/Strings.resx
index 061aefdc8b6..d5c13cece76 100644
--- a/src/libraries/Microsoft.IO.Redist/src/Resources/Strings.resx
+++ b/src/libraries/Microsoft.IO.Redist/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<resheader name="resmimetype">
<value>text/microsoft-resx</value>
</resheader>
diff --git a/src/libraries/Microsoft.VisualBasic.Core/ref/Configurations.props b/src/libraries/Microsoft.VisualBasic.Core/ref/Configurations.props
index 02721ef2a9b..2b2323d4791 100644
--- a/src/libraries/Microsoft.VisualBasic.Core/ref/Configurations.props
+++ b/src/libraries/Microsoft.VisualBasic.Core/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/Microsoft.VisualBasic.Core/src/Configurations.props b/src/libraries/Microsoft.VisualBasic.Core/src/Configurations.props
index 2d71c146559..cba16a40137 100644
--- a/src/libraries/Microsoft.VisualBasic.Core/src/Configurations.props
+++ b/src/libraries/Microsoft.VisualBasic.Core/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/Microsoft.VisualBasic.Core/src/Resources/Strings.resx b/src/libraries/Microsoft.VisualBasic.Core/src/Resources/Strings.resx
index 0344cfb720b..1c5480af079 100644
--- a/src/libraries/Microsoft.VisualBasic.Core/src/Resources/Strings.resx
+++ b/src/libraries/Microsoft.VisualBasic.Core/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/Microsoft.VisualBasic.Core/tests/Configurations.props b/src/libraries/Microsoft.VisualBasic.Core/tests/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/Microsoft.VisualBasic.Core/tests/Configurations.props
+++ b/src/libraries/Microsoft.VisualBasic.Core/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/Microsoft.VisualBasic.Core/tests/VB/Configurations.props b/src/libraries/Microsoft.VisualBasic.Core/tests/VB/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/Microsoft.VisualBasic.Core/tests/VB/Configurations.props
+++ b/src/libraries/Microsoft.VisualBasic.Core/tests/VB/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/Microsoft.Win32.Primitives/Directory.Build.props b/src/libraries/Microsoft.Win32.Primitives/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/Microsoft.Win32.Primitives/Directory.Build.props
+++ b/src/libraries/Microsoft.Win32.Primitives/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
diff --git a/src/libraries/Microsoft.Win32.Primitives/ref/Configurations.props b/src/libraries/Microsoft.Win32.Primitives/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/Microsoft.Win32.Primitives/ref/Configurations.props
+++ b/src/libraries/Microsoft.Win32.Primitives/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/Microsoft.Win32.Primitives/src/Configurations.props b/src/libraries/Microsoft.Win32.Primitives/src/Configurations.props
index 62eb1c47768..421f137c246 100644
--- a/src/libraries/Microsoft.Win32.Primitives/src/Configurations.props
+++ b/src/libraries/Microsoft.Win32.Primitives/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Unix;
diff --git a/src/libraries/Microsoft.Win32.Primitives/tests/Configurations.props b/src/libraries/Microsoft.Win32.Primitives/tests/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/Microsoft.Win32.Primitives/tests/Configurations.props
+++ b/src/libraries/Microsoft.Win32.Primitives/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/Microsoft.Win32.Registry.AccessControl/Directory.Build.props b/src/libraries/Microsoft.Win32.Registry.AccessControl/Directory.Build.props
index afbc21511c0..98004a4badf 100644
--- a/src/libraries/Microsoft.Win32.Registry.AccessControl/Directory.Build.props
+++ b/src/libraries/Microsoft.Win32.Registry.AccessControl/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.4.0</AssemblyVersion>
diff --git a/src/libraries/Microsoft.Win32.Registry.AccessControl/pkg/Microsoft.Win32.Registry.AccessControl.pkgproj b/src/libraries/Microsoft.Win32.Registry.AccessControl/pkg/Microsoft.Win32.Registry.AccessControl.pkgproj
index 2d8e3dbf318..bda29fe7f22 100644
--- a/src/libraries/Microsoft.Win32.Registry.AccessControl/pkg/Microsoft.Win32.Registry.AccessControl.pkgproj
+++ b/src/libraries/Microsoft.Win32.Registry.AccessControl/pkg/Microsoft.Win32.Registry.AccessControl.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\Microsoft.Win32.Registry.AccessControl.csproj">
diff --git a/src/libraries/Microsoft.Win32.Registry.AccessControl/ref/Configurations.props b/src/libraries/Microsoft.Win32.Registry.AccessControl/ref/Configurations.props
index 512a1e812f5..db5ea45241c 100644
--- a/src/libraries/Microsoft.Win32.Registry.AccessControl/ref/Configurations.props
+++ b/src/libraries/Microsoft.Win32.Registry.AccessControl/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<PackageConfigurations>
netstandard;
diff --git a/src/libraries/Microsoft.Win32.Registry.AccessControl/src/Configurations.props b/src/libraries/Microsoft.Win32.Registry.AccessControl/src/Configurations.props
index ff5b0bce116..07902e9a085 100644
--- a/src/libraries/Microsoft.Win32.Registry.AccessControl/src/Configurations.props
+++ b/src/libraries/Microsoft.Win32.Registry.AccessControl/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<PackageConfigurations>
netstandard-Windows_NT;
diff --git a/src/libraries/Microsoft.Win32.Registry.AccessControl/src/Resources/Strings.resx b/src/libraries/Microsoft.Win32.Registry.AccessControl/src/Resources/Strings.resx
index fdd06141be9..d603314000c 100644
--- a/src/libraries/Microsoft.Win32.Registry.AccessControl/src/Resources/Strings.resx
+++ b/src/libraries/Microsoft.Win32.Registry.AccessControl/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/Microsoft.Win32.Registry.AccessControl/tests/Configurations.props b/src/libraries/Microsoft.Win32.Registry.AccessControl/tests/Configurations.props
index 552f5e92bcc..c84dc3ce914 100644
--- a/src/libraries/Microsoft.Win32.Registry.AccessControl/tests/Configurations.props
+++ b/src/libraries/Microsoft.Win32.Registry.AccessControl/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Windows_NT;
diff --git a/src/libraries/Microsoft.Win32.Registry/Directory.Build.props b/src/libraries/Microsoft.Win32.Registry/Directory.Build.props
index 71e2cc39cb4..7de773a482a 100644
--- a/src/libraries/Microsoft.Win32.Registry/Directory.Build.props
+++ b/src/libraries/Microsoft.Win32.Registry/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.2.0</AssemblyVersion>
diff --git a/src/libraries/Microsoft.Win32.Registry/pkg/Microsoft.Win32.Registry.pkgproj b/src/libraries/Microsoft.Win32.Registry/pkg/Microsoft.Win32.Registry.pkgproj
index 684d0f0c3fa..c4c49d5de04 100644
--- a/src/libraries/Microsoft.Win32.Registry/pkg/Microsoft.Win32.Registry.pkgproj
+++ b/src/libraries/Microsoft.Win32.Registry/pkg/Microsoft.Win32.Registry.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\Microsoft.Win32.Registry.csproj">
diff --git a/src/libraries/Microsoft.Win32.Registry/ref/Configurations.props b/src/libraries/Microsoft.Win32.Registry/ref/Configurations.props
index 6308641bd9a..ed1dc44dd48 100644
--- a/src/libraries/Microsoft.Win32.Registry/ref/Configurations.props
+++ b/src/libraries/Microsoft.Win32.Registry/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/Microsoft.Win32.Registry/src/Configurations.props b/src/libraries/Microsoft.Win32.Registry/src/Configurations.props
index bb24b79ee24..b38bf271d1b 100644
--- a/src/libraries/Microsoft.Win32.Registry/src/Configurations.props
+++ b/src/libraries/Microsoft.Win32.Registry/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<PackageConfigurations>
netstandard-Windows_NT;
diff --git a/src/libraries/Microsoft.Win32.Registry/src/Resources/Strings.resx b/src/libraries/Microsoft.Win32.Registry/src/Resources/Strings.resx
index 0930c0b761d..1b789a46772 100644
--- a/src/libraries/Microsoft.Win32.Registry/src/Resources/Strings.resx
+++ b/src/libraries/Microsoft.Win32.Registry/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/Microsoft.Win32.Registry/tests/Configurations.props b/src/libraries/Microsoft.Win32.Registry/tests/Configurations.props
index 03909885449..d2b1d4d5d86 100644
--- a/src/libraries/Microsoft.Win32.Registry/tests/Configurations.props
+++ b/src/libraries/Microsoft.Win32.Registry/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Windows_NT;
diff --git a/src/libraries/Microsoft.Win32.SystemEvents/Directory.Build.props b/src/libraries/Microsoft.Win32.SystemEvents/Directory.Build.props
index 6c5c34bc9f4..75494287ea7 100644
--- a/src/libraries/Microsoft.Win32.SystemEvents/Directory.Build.props
+++ b/src/libraries/Microsoft.Win32.SystemEvents/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.1.0</AssemblyVersion>
diff --git a/src/libraries/Microsoft.Win32.SystemEvents/pkg/Microsoft.Win32.SystemEvents.pkgproj b/src/libraries/Microsoft.Win32.SystemEvents/pkg/Microsoft.Win32.SystemEvents.pkgproj
index b3259258fda..9620ccc82c5 100644
--- a/src/libraries/Microsoft.Win32.SystemEvents/pkg/Microsoft.Win32.SystemEvents.pkgproj
+++ b/src/libraries/Microsoft.Win32.SystemEvents/pkg/Microsoft.Win32.SystemEvents.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\Microsoft.Win32.SystemEvents.csproj">
diff --git a/src/libraries/Microsoft.Win32.SystemEvents/ref/Configurations.props b/src/libraries/Microsoft.Win32.SystemEvents/ref/Configurations.props
index 6308641bd9a..ed1dc44dd48 100644
--- a/src/libraries/Microsoft.Win32.SystemEvents/ref/Configurations.props
+++ b/src/libraries/Microsoft.Win32.SystemEvents/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/Microsoft.Win32.SystemEvents/src/Configurations.props b/src/libraries/Microsoft.Win32.SystemEvents/src/Configurations.props
index 22ece157ac1..9fa6530c828 100644
--- a/src/libraries/Microsoft.Win32.SystemEvents/src/Configurations.props
+++ b/src/libraries/Microsoft.Win32.SystemEvents/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<PackageConfigurations>
netstandard;
diff --git a/src/libraries/Microsoft.Win32.SystemEvents/src/Resources/Strings.resx b/src/libraries/Microsoft.Win32.SystemEvents/src/Resources/Strings.resx
index 99fcf24d207..96464aac30d 100644
--- a/src/libraries/Microsoft.Win32.SystemEvents/src/Resources/Strings.resx
+++ b/src/libraries/Microsoft.Win32.SystemEvents/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/Microsoft.Win32.SystemEvents/tests/Configurations.props b/src/libraries/Microsoft.Win32.SystemEvents/tests/Configurations.props
index 03909885449..d2b1d4d5d86 100644
--- a/src/libraries/Microsoft.Win32.SystemEvents/tests/Configurations.props
+++ b/src/libraries/Microsoft.Win32.SystemEvents/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Windows_NT;
diff --git a/src/libraries/Microsoft.XmlSerializer.Generator/Directory.Build.props b/src/libraries/Microsoft.XmlSerializer.Generator/Directory.Build.props
index 22fe3759f52..041f284a79f 100644
--- a/src/libraries/Microsoft.XmlSerializer.Generator/Directory.Build.props
+++ b/src/libraries/Microsoft.XmlSerializer.Generator/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<PackageVersion>2.1.0</PackageVersion>
diff --git a/src/libraries/Microsoft.XmlSerializer.Generator/pkg/GenerateNupkgProps.targets b/src/libraries/Microsoft.XmlSerializer.Generator/pkg/GenerateNupkgProps.targets
index ce4649910de..f05f8de2112 100644
--- a/src/libraries/Microsoft.XmlSerializer.Generator/pkg/GenerateNupkgProps.targets
+++ b/src/libraries/Microsoft.XmlSerializer.Generator/pkg/GenerateNupkgProps.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildDependsOn>
GenerateNupkgProps;
@@ -16,7 +15,7 @@
<Target Name="GenerateNupkgProps" DependsOnTargets="CalculatePackageVersion">
<PropertyGroup>
<PropsFileContents>
-&lt;Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"&gt;
+&lt;Project&gt;
&lt;ItemGroup&gt;
&lt;DotNetCliToolReference Include="$(Id)" Version="$(PackageVersion)" /&gt;
&lt;/ItemGroup&gt;
diff --git a/src/libraries/Microsoft.XmlSerializer.Generator/pkg/Microsoft.XmlSerializer.Generator.pkgproj b/src/libraries/Microsoft.XmlSerializer.Generator/pkg/Microsoft.XmlSerializer.Generator.pkgproj
index b10b6e00b7a..4ea022d5a0f 100644
--- a/src/libraries/Microsoft.XmlSerializer.Generator/pkg/Microsoft.XmlSerializer.Generator.pkgproj
+++ b/src/libraries/Microsoft.XmlSerializer.Generator/pkg/Microsoft.XmlSerializer.Generator.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\src\Microsoft.XmlSerializer.Generator.csproj" />
diff --git a/src/libraries/Microsoft.XmlSerializer.Generator/src/Configurations.props b/src/libraries/Microsoft.XmlSerializer.Generator/src/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/Microsoft.XmlSerializer.Generator/src/Configurations.props
+++ b/src/libraries/Microsoft.XmlSerializer.Generator/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/Microsoft.XmlSerializer.Generator/src/GenerateThisAssemblyCs.targets b/src/libraries/Microsoft.XmlSerializer.Generator/src/GenerateThisAssemblyCs.targets
index d994d6c71c1..6bf1617711b 100644
--- a/src/libraries/Microsoft.XmlSerializer.Generator/src/GenerateThisAssemblyCs.targets
+++ b/src/libraries/Microsoft.XmlSerializer.Generator/src/GenerateThisAssemblyCs.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<Compile Include="$(IntermediateOutputPath)\ThisAssembly.cs"/>
</ItemGroup>
diff --git a/src/libraries/Microsoft.XmlSerializer.Generator/tests/Configurations.props b/src/libraries/Microsoft.XmlSerializer.Generator/tests/Configurations.props
index 79f33d01ba8..24c315971e4 100644
--- a/src/libraries/Microsoft.XmlSerializer.Generator/tests/Configurations.props
+++ b/src/libraries/Microsoft.XmlSerializer.Generator/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netfx;
diff --git a/src/libraries/Native/build-native.proj b/src/libraries/Native/build-native.proj
index 0fff3494ab1..0edf486adf5 100644
--- a/src/libraries/Native/build-native.proj
+++ b/src/libraries/Native/build-native.proj
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project>
<Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.props))" />
diff --git a/src/libraries/Native/native-binplace.proj b/src/libraries/Native/native-binplace.proj
index b0b5e52aba1..93b1c676b5e 100644
--- a/src/libraries/Native/native-binplace.proj
+++ b/src/libraries/Native/native-binplace.proj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" DefaultTargets="Build">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/Native/pkg/Directory.Build.props b/src/libraries/Native/pkg/Directory.Build.props
index 3e623ece91d..5e626177d1b 100644
--- a/src/libraries/Native/pkg/Directory.Build.props
+++ b/src/libraries/Native/pkg/Directory.Build.props
@@ -1,4 +1,4 @@
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\..\Directory.Build.props" />
<PropertyGroup>
diff --git a/src/libraries/Native/pkg/Directory.Build.targets b/src/libraries/Native/pkg/Directory.Build.targets
index 2c22401f381..61c4a1f65bf 100644
--- a/src/libraries/Native/pkg/Directory.Build.targets
+++ b/src/libraries/Native/pkg/Directory.Build.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<!-- Add path globs specific to native binaries to exclude unnecessary files from packages. -->
<Choose>
diff --git a/src/libraries/Native/pkg/runtime.native.System.Data.SqlClient.sni/runtime.native.System.Data.SqlClient.sni.pkgproj b/src/libraries/Native/pkg/runtime.native.System.Data.SqlClient.sni/runtime.native.System.Data.SqlClient.sni.pkgproj
index a1ef7a072b4..19cda674233 100644
--- a/src/libraries/Native/pkg/runtime.native.System.Data.SqlClient.sni/runtime.native.System.Data.SqlClient.sni.pkgproj
+++ b/src/libraries/Native/pkg/runtime.native.System.Data.SqlClient.sni/runtime.native.System.Data.SqlClient.sni.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<PropertyGroup>
<SkipPackageFileCheck>true</SkipPackageFileCheck>
diff --git a/src/libraries/SharedFrameworkValidation/RestoreSDKProject/NuGet.config b/src/libraries/SharedFrameworkValidation/RestoreSDKProject/NuGet.config
index 320ef145256..9de882614df 100644
--- a/src/libraries/SharedFrameworkValidation/RestoreSDKProject/NuGet.config
+++ b/src/libraries/SharedFrameworkValidation/RestoreSDKProject/NuGet.config
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<configuration>
<config>
<add key="globalPackagesFolder" value="../../../packages" />
diff --git a/src/libraries/SharedFrameworkValidation/SharedFrameworkValidation.proj b/src/libraries/SharedFrameworkValidation/SharedFrameworkValidation.proj
index 7a506426a23..d06ff26f656 100644
--- a/src/libraries/SharedFrameworkValidation/SharedFrameworkValidation.proj
+++ b/src/libraries/SharedFrameworkValidation/SharedFrameworkValidation.proj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" DefaultTargets="Build">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<PropertyGroup>
diff --git a/src/libraries/System.AppContext/Directory.Build.props b/src/libraries/System.AppContext/Directory.Build.props
index 047458dfc57..988124d2d8e 100644
--- a/src/libraries/System.AppContext/Directory.Build.props
+++ b/src/libraries/System.AppContext/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.2.1.0</AssemblyVersion>
diff --git a/src/libraries/System.AppContext/ref/Configurations.props b/src/libraries/System.AppContext/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.AppContext/ref/Configurations.props
+++ b/src/libraries/System.AppContext/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.AppContext/src/Configurations.props b/src/libraries/System.AppContext/src/Configurations.props
index afd7b401c08..5d1182962c9 100644
--- a/src/libraries/System.AppContext/src/Configurations.props
+++ b/src/libraries/System.AppContext/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Windows_NT;
diff --git a/src/libraries/System.AppContext/tests/Configurations.props b/src/libraries/System.AppContext/tests/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.AppContext/tests/Configurations.props
+++ b/src/libraries/System.AppContext/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Buffers/Directory.Build.props b/src/libraries/System.Buffers/Directory.Build.props
index c5a1d5d47bb..009e8c675ee 100644
--- a/src/libraries/System.Buffers/Directory.Build.props
+++ b/src/libraries/System.Buffers/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.4.0</AssemblyVersion>
diff --git a/src/libraries/System.Buffers/ref/Configurations.props b/src/libraries/System.Buffers/ref/Configurations.props
index 30b6227d79b..fabb861dc64 100644
--- a/src/libraries/System.Buffers/ref/Configurations.props
+++ b/src/libraries/System.Buffers/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Buffers/src/Configurations.props b/src/libraries/System.Buffers/src/Configurations.props
index afd7b401c08..5d1182962c9 100644
--- a/src/libraries/System.Buffers/src/Configurations.props
+++ b/src/libraries/System.Buffers/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Windows_NT;
diff --git a/src/libraries/System.Buffers/src/Resources/Strings.resx b/src/libraries/System.Buffers/src/Resources/Strings.resx
index 83a1b5f6801..452da4c6589 100644
--- a/src/libraries/System.Buffers/src/Resources/Strings.resx
+++ b/src/libraries/System.Buffers/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Buffers/tests/Configurations.props b/src/libraries/System.Buffers/tests/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.Buffers/tests/Configurations.props
+++ b/src/libraries/System.Buffers/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.CodeDom/Directory.Build.props b/src/libraries/System.CodeDom/Directory.Build.props
index 6a43eb658bf..c63e87ea233 100644
--- a/src/libraries/System.CodeDom/Directory.Build.props
+++ b/src/libraries/System.CodeDom/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.2.0</AssemblyVersion>
diff --git a/src/libraries/System.CodeDom/pkg/System.CodeDom.pkgproj b/src/libraries/System.CodeDom/pkg/System.CodeDom.pkgproj
index 2f99fd4fcb1..69615ec0f3e 100644
--- a/src/libraries/System.CodeDom/pkg/System.CodeDom.pkgproj
+++ b/src/libraries/System.CodeDom/pkg/System.CodeDom.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.CodeDom.csproj">
diff --git a/src/libraries/System.CodeDom/ref/Configurations.props b/src/libraries/System.CodeDom/ref/Configurations.props
index 48c33849d7c..35d1514b2b7 100644
--- a/src/libraries/System.CodeDom/ref/Configurations.props
+++ b/src/libraries/System.CodeDom/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<PackageConfigurations>
net461;
diff --git a/src/libraries/System.CodeDom/src/Configurations.props b/src/libraries/System.CodeDom/src/Configurations.props
index 48c33849d7c..35d1514b2b7 100644
--- a/src/libraries/System.CodeDom/src/Configurations.props
+++ b/src/libraries/System.CodeDom/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<PackageConfigurations>
net461;
diff --git a/src/libraries/System.CodeDom/src/Resources/Strings.resx b/src/libraries/System.CodeDom/src/Resources/Strings.resx
index 4458b9cd7bd..fdf82e7bcd4 100644
--- a/src/libraries/System.CodeDom/src/Resources/Strings.resx
+++ b/src/libraries/System.CodeDom/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.CodeDom/tests/Configurations.props b/src/libraries/System.CodeDom/tests/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.CodeDom/tests/Configurations.props
+++ b/src/libraries/System.CodeDom/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Collections.Concurrent/Directory.Build.props b/src/libraries/System.Collections.Concurrent/Directory.Build.props
index de4517a5a8f..d50127f8cc5 100644
--- a/src/libraries/System.Collections.Concurrent/Directory.Build.props
+++ b/src/libraries/System.Collections.Concurrent/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.14.0</AssemblyVersion>
diff --git a/src/libraries/System.Collections.Concurrent/ref/Configurations.props b/src/libraries/System.Collections.Concurrent/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.Collections.Concurrent/ref/Configurations.props
+++ b/src/libraries/System.Collections.Concurrent/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Collections.Concurrent/src/Configurations.props b/src/libraries/System.Collections.Concurrent/src/Configurations.props
index a5054eeed39..4002bb57120 100644
--- a/src/libraries/System.Collections.Concurrent/src/Configurations.props
+++ b/src/libraries/System.Collections.Concurrent/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Unix;
diff --git a/src/libraries/System.Collections.Concurrent/src/Resources/Strings.resx b/src/libraries/System.Collections.Concurrent/src/Resources/Strings.resx
index e32a9a254ce..3656beacd5d 100644
--- a/src/libraries/System.Collections.Concurrent/src/Resources/Strings.resx
+++ b/src/libraries/System.Collections.Concurrent/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Collections.Concurrent/tests/Configurations.props b/src/libraries/System.Collections.Concurrent/tests/Configurations.props
index 77a4b65bc94..2bc19ff4170 100644
--- a/src/libraries/System.Collections.Concurrent/tests/Configurations.props
+++ b/src/libraries/System.Collections.Concurrent/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Collections.Concurrent/tests/Performance/Configurations.props b/src/libraries/System.Collections.Concurrent/tests/Performance/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Collections.Concurrent/tests/Performance/Configurations.props
+++ b/src/libraries/System.Collections.Concurrent/tests/Performance/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Collections.Immutable/Directory.Build.props b/src/libraries/System.Collections.Immutable/Directory.Build.props
index 3cd18cc250c..7e38210d72e 100644
--- a/src/libraries/System.Collections.Immutable/Directory.Build.props
+++ b/src/libraries/System.Collections.Immutable/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<PackageVersion>1.6.0</PackageVersion>
diff --git a/src/libraries/System.Collections.Immutable/pkg/System.Collections.Immutable.pkgproj b/src/libraries/System.Collections.Immutable/pkg/System.Collections.Immutable.pkgproj
index 54a2b54778f..6a57dbc5788 100644
--- a/src/libraries/System.Collections.Immutable/pkg/System.Collections.Immutable.pkgproj
+++ b/src/libraries/System.Collections.Immutable/pkg/System.Collections.Immutable.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<PropertyGroup>
<!-- we need to be supported on pre-nuget-3 platforms (Dev12, Dev11, etc) -->
diff --git a/src/libraries/System.Collections.Immutable/ref/Configurations.props b/src/libraries/System.Collections.Immutable/ref/Configurations.props
index 048bc45cf40..3e0bc47bafe 100644
--- a/src/libraries/System.Collections.Immutable/ref/Configurations.props
+++ b/src/libraries/System.Collections.Immutable/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<PackageConfigurations>
netstandard1.0;
diff --git a/src/libraries/System.Collections.Immutable/src/Configurations.props b/src/libraries/System.Collections.Immutable/src/Configurations.props
index 048bc45cf40..3e0bc47bafe 100644
--- a/src/libraries/System.Collections.Immutable/src/Configurations.props
+++ b/src/libraries/System.Collections.Immutable/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<PackageConfigurations>
netstandard1.0;
diff --git a/src/libraries/System.Collections.Immutable/src/Interfaces.cd b/src/libraries/System.Collections.Immutable/src/Interfaces.cd
index 3466abc0fc0..1dd8ef3cd0b 100644
--- a/src/libraries/System.Collections.Immutable/src/Interfaces.cd
+++ b/src/libraries/System.Collections.Immutable/src/Interfaces.cd
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ClassDiagram MajorVersion="1" MinorVersion="1">
+<ClassDiagram MajorVersion="1" MinorVersion="1">
<Interface Name="System.Collections.Generic.IHashKeyCollection&lt;TKey&gt;">
<Position X="12.75" Y="0.5" Width="1.75" />
<TypeIdentifier>
diff --git a/src/libraries/System.Collections.Immutable/src/Resources/Strings.resx b/src/libraries/System.Collections.Immutable/src/Resources/Strings.resx
index c7caeb7f255..7bdc72cf719 100644
--- a/src/libraries/System.Collections.Immutable/src/Resources/Strings.resx
+++ b/src/libraries/System.Collections.Immutable/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
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-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Collections.Immutable/tests/ClassDiagram1.cd b/src/libraries/System.Collections.Immutable/tests/ClassDiagram1.cd
index 336a3bbf005..c29506429b8 100644
--- a/src/libraries/System.Collections.Immutable/tests/ClassDiagram1.cd
+++ b/src/libraries/System.Collections.Immutable/tests/ClassDiagram1.cd
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<ClassDiagram MajorVersion="1" MinorVersion="1">
+<ClassDiagram MajorVersion="1" MinorVersion="1">
<Class Name="System.Collections.Immutable.Test.ImmutableListBuilderTest" Collapsed="true">
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<TypeIdentifier>
diff --git a/src/libraries/System.Collections.Immutable/tests/Configurations.props b/src/libraries/System.Collections.Immutable/tests/Configurations.props
index eb4a540a928..a83bb569e75 100644
--- a/src/libraries/System.Collections.Immutable/tests/Configurations.props
+++ b/src/libraries/System.Collections.Immutable/tests/Configurations.props
@@ -1,5 +1,4 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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netstandard;
diff --git a/src/libraries/System.Collections.NonGeneric/Directory.Build.props b/src/libraries/System.Collections.NonGeneric/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Collections.NonGeneric/Directory.Build.props
+++ b/src/libraries/System.Collections.NonGeneric/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Collections.NonGeneric/ref/Configurations.props b/src/libraries/System.Collections.NonGeneric/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.Collections.NonGeneric/ref/Configurations.props
+++ b/src/libraries/System.Collections.NonGeneric/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Collections.NonGeneric/src/Configurations.props b/src/libraries/System.Collections.NonGeneric/src/Configurations.props
index a8910ef718c..86aa0bae312 100644
--- a/src/libraries/System.Collections.NonGeneric/src/Configurations.props
+++ b/src/libraries/System.Collections.NonGeneric/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.Collections.NonGeneric/src/Resources/Strings.resx b/src/libraries/System.Collections.NonGeneric/src/Resources/Strings.resx
index 81bcc1aebfc..c2f3eb1c61b 100644
--- a/src/libraries/System.Collections.NonGeneric/src/Resources/Strings.resx
+++ b/src/libraries/System.Collections.NonGeneric/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
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<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Collections.NonGeneric/tests/Configurations.props b/src/libraries/System.Collections.NonGeneric/tests/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.Collections.NonGeneric/tests/Configurations.props
+++ b/src/libraries/System.Collections.NonGeneric/tests/Configurations.props
@@ -1,5 +1,4 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Collections.NonGeneric/tests/Performance/Configurations.props b/src/libraries/System.Collections.NonGeneric/tests/Performance/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Collections.NonGeneric/tests/Performance/Configurations.props
+++ b/src/libraries/System.Collections.NonGeneric/tests/Performance/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Collections.Specialized/Directory.Build.props b/src/libraries/System.Collections.Specialized/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Collections.Specialized/Directory.Build.props
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@@ -1,5 +1,4 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Collections.Specialized/ref/Configurations.props b/src/libraries/System.Collections.Specialized/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.Collections.Specialized/ref/Configurations.props
+++ b/src/libraries/System.Collections.Specialized/ref/Configurations.props
@@ -1,5 +1,4 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Collections.Specialized/src/Configurations.props b/src/libraries/System.Collections.Specialized/src/Configurations.props
index a8910ef718c..86aa0bae312 100644
--- a/src/libraries/System.Collections.Specialized/src/Configurations.props
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@@ -1,5 +1,4 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.Collections.Specialized/src/Resources/Strings.resx b/src/libraries/System.Collections.Specialized/src/Resources/Strings.resx
index 0c6f48498c1..cf455198939 100644
--- a/src/libraries/System.Collections.Specialized/src/Resources/Strings.resx
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@@ -1,5 +1,4 @@
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<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Collections.Specialized/tests/Configurations.props b/src/libraries/System.Collections.Specialized/tests/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.Collections.Specialized/tests/Configurations.props
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<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Collections/Directory.Build.props b/src/libraries/System.Collections/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Collections/Directory.Build.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
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diff --git a/src/libraries/System.Collections/ref/Configurations.props b/src/libraries/System.Collections/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.Collections/ref/Configurations.props
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diff --git a/src/libraries/System.Collections/src/Configurations.props b/src/libraries/System.Collections/src/Configurations.props
index 4b4fb25252b..78e091b28e2 100644
--- a/src/libraries/System.Collections/src/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
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<BuildConfigurations>
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diff --git a/src/libraries/System.Collections/src/Resources/Strings.resx b/src/libraries/System.Collections/src/Resources/Strings.resx
index 0e07b69ee9e..d9e1f7000db 100644
--- a/src/libraries/System.Collections/src/Resources/Strings.resx
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@@ -1,5 +1,4 @@
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<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
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diff --git a/src/libraries/System.Collections/tests/Configurations.props b/src/libraries/System.Collections/tests/Configurations.props
index 8b803e0772f..e43964ecf9e 100644
--- a/src/libraries/System.Collections/tests/Configurations.props
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netcoreapp;
diff --git a/src/libraries/System.Collections/tests/Performance/Configurations.props b/src/libraries/System.Collections/tests/Performance/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Collections/tests/Performance/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.ComponentModel.Annotations/Directory.Build.props b/src/libraries/System.ComponentModel.Annotations/Directory.Build.props
index 60fe8512d80..11d031df69d 100644
--- a/src/libraries/System.ComponentModel.Annotations/Directory.Build.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.2.2.0</AssemblyVersion>
diff --git a/src/libraries/System.ComponentModel.Annotations/pkg/System.ComponentModel.Annotations.pkgproj b/src/libraries/System.ComponentModel.Annotations/pkg/System.ComponentModel.Annotations.pkgproj
index c9e4d8f08f4..d514410f7cf 100644
--- a/src/libraries/System.ComponentModel.Annotations/pkg/System.ComponentModel.Annotations.pkgproj
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-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.ComponentModel.Annotations.csproj">
diff --git a/src/libraries/System.ComponentModel.Annotations/ref/Configurations.props b/src/libraries/System.ComponentModel.Annotations/ref/Configurations.props
index 512a1e812f5..db5ea45241c 100644
--- a/src/libraries/System.ComponentModel.Annotations/ref/Configurations.props
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index 60bf5e1cbb7..9c9b9ab5178 100644
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diff --git a/src/libraries/System.ComponentModel.Annotations/src/Resources/Strings.resx b/src/libraries/System.ComponentModel.Annotations/src/Resources/Strings.resx
index 65a0ec1a2c0..e20eea0c066 100644
--- a/src/libraries/System.ComponentModel.Annotations/src/Resources/Strings.resx
+++ b/src/libraries/System.ComponentModel.Annotations/src/Resources/Strings.resx
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<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.ComponentModel.Annotations/tests/Configurations.props b/src/libraries/System.ComponentModel.Annotations/tests/Configurations.props
index 77a4b65bc94..2bc19ff4170 100644
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netstandard;
diff --git a/src/libraries/System.ComponentModel.Composition.Registration/Directory.Build.props b/src/libraries/System.ComponentModel.Composition.Registration/Directory.Build.props
index 417924e5d99..7b1204a4c72 100644
--- a/src/libraries/System.ComponentModel.Composition.Registration/Directory.Build.props
+++ b/src/libraries/System.ComponentModel.Composition.Registration/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
diff --git a/src/libraries/System.ComponentModel.Composition.Registration/pkg/System.ComponentModel.Composition.Registration.pkgproj b/src/libraries/System.ComponentModel.Composition.Registration/pkg/System.ComponentModel.Composition.Registration.pkgproj
index 631c247796a..4bc86a918ec 100644
--- a/src/libraries/System.ComponentModel.Composition.Registration/pkg/System.ComponentModel.Composition.Registration.pkgproj
+++ b/src/libraries/System.ComponentModel.Composition.Registration/pkg/System.ComponentModel.Composition.Registration.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.ComponentModel.Composition.Registration.csproj">
diff --git a/src/libraries/System.ComponentModel.Composition.Registration/ref/Configurations.props b/src/libraries/System.ComponentModel.Composition.Registration/ref/Configurations.props
index a83fe20d892..045fafbae1d 100644
--- a/src/libraries/System.ComponentModel.Composition.Registration/ref/Configurations.props
+++ b/src/libraries/System.ComponentModel.Composition.Registration/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.ComponentModel.Composition.Registration/src/Configurations.props b/src/libraries/System.ComponentModel.Composition.Registration/src/Configurations.props
index 6bbc80a118a..ac2aa337a9d 100644
--- a/src/libraries/System.ComponentModel.Composition.Registration/src/Configurations.props
+++ b/src/libraries/System.ComponentModel.Composition.Registration/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<PackageConfigurations>
netstandard;
diff --git a/src/libraries/System.ComponentModel.Composition.Registration/src/Resources/Strings.resx b/src/libraries/System.ComponentModel.Composition.Registration/src/Resources/Strings.resx
index 24a2a1673ef..04e8ef95da5 100644
--- a/src/libraries/System.ComponentModel.Composition.Registration/src/Resources/Strings.resx
+++ b/src/libraries/System.ComponentModel.Composition.Registration/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.ComponentModel.Composition.Registration/tests/Configurations.props b/src/libraries/System.ComponentModel.Composition.Registration/tests/Configurations.props
index e81ce942903..992904366b4 100644
--- a/src/libraries/System.ComponentModel.Composition.Registration/tests/Configurations.props
+++ b/src/libraries/System.ComponentModel.Composition.Registration/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.ComponentModel.Composition/Directory.Build.props b/src/libraries/System.ComponentModel.Composition/Directory.Build.props
index 417924e5d99..7b1204a4c72 100644
--- a/src/libraries/System.ComponentModel.Composition/Directory.Build.props
+++ b/src/libraries/System.ComponentModel.Composition/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
diff --git a/src/libraries/System.ComponentModel.Composition/pkg/System.ComponentModel.Composition.pkgproj b/src/libraries/System.ComponentModel.Composition/pkg/System.ComponentModel.Composition.pkgproj
index ae3641d6a15..4810c4975dc 100644
--- a/src/libraries/System.ComponentModel.Composition/pkg/System.ComponentModel.Composition.pkgproj
+++ b/src/libraries/System.ComponentModel.Composition/pkg/System.ComponentModel.Composition.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.ComponentModel.Composition.csproj">
diff --git a/src/libraries/System.ComponentModel.Composition/ref/Configurations.props b/src/libraries/System.ComponentModel.Composition/ref/Configurations.props
index a83fe20d892..045fafbae1d 100644
--- a/src/libraries/System.ComponentModel.Composition/ref/Configurations.props
+++ b/src/libraries/System.ComponentModel.Composition/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.ComponentModel.Composition/src/Configurations.props b/src/libraries/System.ComponentModel.Composition/src/Configurations.props
index 884be53cf0e..f34fa036485 100644
--- a/src/libraries/System.ComponentModel.Composition/src/Configurations.props
+++ b/src/libraries/System.ComponentModel.Composition/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<PackageConfigurations>
netstandard;
diff --git a/src/libraries/System.ComponentModel.Composition/src/Resources/Strings.resx b/src/libraries/System.ComponentModel.Composition/src/Resources/Strings.resx
index 2308b2c45de..8899ffb3aab 100644
--- a/src/libraries/System.ComponentModel.Composition/src/Resources/Strings.resx
+++ b/src/libraries/System.ComponentModel.Composition/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.ComponentModel.Composition/tests/Configurations.props b/src/libraries/System.ComponentModel.Composition/tests/Configurations.props
index e81ce942903..992904366b4 100644
--- a/src/libraries/System.ComponentModel.Composition/tests/Configurations.props
+++ b/src/libraries/System.ComponentModel.Composition/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.ComponentModel.Composition/tests/System.ComponentModel.Composition.Noop.Assembly/Configurations.props b/src/libraries/System.ComponentModel.Composition/tests/System.ComponentModel.Composition.Noop.Assembly/Configurations.props
index 77a4b65bc94..febffb03ac6 100644
--- a/src/libraries/System.ComponentModel.Composition/tests/System.ComponentModel.Composition.Noop.Assembly/Configurations.props
+++ b/src/libraries/System.ComponentModel.Composition/tests/System.ComponentModel.Composition.Noop.Assembly/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.ComponentModel.EventBasedAsync/Directory.Build.props b/src/libraries/System.ComponentModel.EventBasedAsync/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.ComponentModel.EventBasedAsync/Directory.Build.props
+++ b/src/libraries/System.ComponentModel.EventBasedAsync/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
diff --git a/src/libraries/System.ComponentModel.EventBasedAsync/ref/Configurations.props b/src/libraries/System.ComponentModel.EventBasedAsync/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.ComponentModel.EventBasedAsync/ref/Configurations.props
+++ b/src/libraries/System.ComponentModel.EventBasedAsync/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.ComponentModel.EventBasedAsync/src/Configurations.props b/src/libraries/System.ComponentModel.EventBasedAsync/src/Configurations.props
index a8910ef718c..86aa0bae312 100644
--- a/src/libraries/System.ComponentModel.EventBasedAsync/src/Configurations.props
+++ b/src/libraries/System.ComponentModel.EventBasedAsync/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.ComponentModel.EventBasedAsync/src/Resources/Strings.resx b/src/libraries/System.ComponentModel.EventBasedAsync/src/Resources/Strings.resx
index d9dce28e6af..86c96d308b8 100644
--- a/src/libraries/System.ComponentModel.EventBasedAsync/src/Resources/Strings.resx
+++ b/src/libraries/System.ComponentModel.EventBasedAsync/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.ComponentModel.EventBasedAsync/tests/Configurations.props b/src/libraries/System.ComponentModel.EventBasedAsync/tests/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.ComponentModel.EventBasedAsync/tests/Configurations.props
+++ b/src/libraries/System.ComponentModel.EventBasedAsync/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.ComponentModel.Primitives/Directory.Build.props b/src/libraries/System.ComponentModel.Primitives/Directory.Build.props
index 047458dfc57..988124d2d8e 100644
--- a/src/libraries/System.ComponentModel.Primitives/Directory.Build.props
+++ b/src/libraries/System.ComponentModel.Primitives/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.2.1.0</AssemblyVersion>
diff --git a/src/libraries/System.ComponentModel.Primitives/ref/Configurations.props b/src/libraries/System.ComponentModel.Primitives/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.ComponentModel.Primitives/ref/Configurations.props
+++ b/src/libraries/System.ComponentModel.Primitives/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.ComponentModel.Primitives/src/Configurations.props b/src/libraries/System.ComponentModel.Primitives/src/Configurations.props
index a8910ef718c..86aa0bae312 100644
--- a/src/libraries/System.ComponentModel.Primitives/src/Configurations.props
+++ b/src/libraries/System.ComponentModel.Primitives/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.ComponentModel.Primitives/src/Resources/Strings.resx b/src/libraries/System.ComponentModel.Primitives/src/Resources/Strings.resx
index e1b8f5bef32..4d59c782608 100644
--- a/src/libraries/System.ComponentModel.Primitives/src/Resources/Strings.resx
+++ b/src/libraries/System.ComponentModel.Primitives/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.ComponentModel.Primitives/tests/Configurations.props b/src/libraries/System.ComponentModel.Primitives/tests/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.ComponentModel.Primitives/tests/Configurations.props
+++ b/src/libraries/System.ComponentModel.Primitives/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.ComponentModel.TypeConverter/Directory.Build.props b/src/libraries/System.ComponentModel.TypeConverter/Directory.Build.props
index 047458dfc57..988124d2d8e 100644
--- a/src/libraries/System.ComponentModel.TypeConverter/Directory.Build.props
+++ b/src/libraries/System.ComponentModel.TypeConverter/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.2.1.0</AssemblyVersion>
diff --git a/src/libraries/System.ComponentModel.TypeConverter/ref/Configurations.props b/src/libraries/System.ComponentModel.TypeConverter/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.ComponentModel.TypeConverter/ref/Configurations.props
+++ b/src/libraries/System.ComponentModel.TypeConverter/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.ComponentModel.TypeConverter/src/Configurations.props b/src/libraries/System.ComponentModel.TypeConverter/src/Configurations.props
index a8910ef718c..86aa0bae312 100644
--- a/src/libraries/System.ComponentModel.TypeConverter/src/Configurations.props
+++ b/src/libraries/System.ComponentModel.TypeConverter/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.ComponentModel.TypeConverter/src/Resources/Strings.resx b/src/libraries/System.ComponentModel.TypeConverter/src/Resources/Strings.resx
index dd8dc95fd5d..e2b4d67a4ae 100644
--- a/src/libraries/System.ComponentModel.TypeConverter/src/Resources/Strings.resx
+++ b/src/libraries/System.ComponentModel.TypeConverter/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.ComponentModel.TypeConverter/tests/Configurations.props b/src/libraries/System.ComponentModel.TypeConverter/tests/Configurations.props
index 6a544338f32..caa17156119 100644
--- a/src/libraries/System.ComponentModel.TypeConverter/tests/Configurations.props
+++ b/src/libraries/System.ComponentModel.TypeConverter/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.ComponentModel.TypeConverter/tests/Performance/Configurations.props b/src/libraries/System.ComponentModel.TypeConverter/tests/Performance/Configurations.props
index 8b803e0772f..f5d3d45ffbf 100644
--- a/src/libraries/System.ComponentModel.TypeConverter/tests/Performance/Configurations.props
+++ b/src/libraries/System.ComponentModel.TypeConverter/tests/Performance/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.ComponentModel.TypeConverter/tests/Resources/TestResx.resx b/src/libraries/System.ComponentModel.TypeConverter/tests/Resources/TestResx.resx
index a088c94d902..fe736cdd9c3 100644
--- a/src/libraries/System.ComponentModel.TypeConverter/tests/Resources/TestResx.resx
+++ b/src/libraries/System.ComponentModel.TypeConverter/tests/Resources/TestResx.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.ComponentModel/Directory.Build.props b/src/libraries/System.ComponentModel/Directory.Build.props
index cac4c947b8b..dd429856628 100644
--- a/src/libraries/System.ComponentModel/Directory.Build.props
+++ b/src/libraries/System.ComponentModel/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.3.0</AssemblyVersion>
diff --git a/src/libraries/System.ComponentModel/ref/Configurations.props b/src/libraries/System.ComponentModel/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.ComponentModel/ref/Configurations.props
+++ b/src/libraries/System.ComponentModel/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.ComponentModel/src/Configurations.props b/src/libraries/System.ComponentModel/src/Configurations.props
index b7611d75b72..aa1d3487597 100644
--- a/src/libraries/System.ComponentModel/src/Configurations.props
+++ b/src/libraries/System.ComponentModel/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.ComponentModel/tests/Configurations.props b/src/libraries/System.ComponentModel/tests/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.ComponentModel/tests/Configurations.props
+++ b/src/libraries/System.ComponentModel/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Composition.AttributedModel/Directory.Build.props b/src/libraries/System.Composition.AttributedModel/Directory.Build.props
index a73f4a74fb4..d8220fc4143 100644
--- a/src/libraries/System.Composition.AttributedModel/Directory.Build.props
+++ b/src/libraries/System.Composition.AttributedModel/Directory.Build.props
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\System.Composition\Directory.Build.props" />
</Project> \ No newline at end of file
diff --git a/src/libraries/System.Composition.AttributedModel/pkg/System.Composition.AttributedModel.pkgproj b/src/libraries/System.Composition.AttributedModel/pkg/System.Composition.AttributedModel.pkgproj
index b4a29ff02a7..09e6802a073 100644
--- a/src/libraries/System.Composition.AttributedModel/pkg/System.Composition.AttributedModel.pkgproj
+++ b/src/libraries/System.Composition.AttributedModel/pkg/System.Composition.AttributedModel.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\src\System.Composition.AttributedModel.csproj">
diff --git a/src/libraries/System.Composition.AttributedModel/src/Configurations.props b/src/libraries/System.Composition.AttributedModel/src/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.Composition.AttributedModel/src/Configurations.props
+++ b/src/libraries/System.Composition.AttributedModel/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Composition.AttributedModel/tests/Configurations.props b/src/libraries/System.Composition.AttributedModel/tests/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.Composition.AttributedModel/tests/Configurations.props
+++ b/src/libraries/System.Composition.AttributedModel/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Composition.Convention/Directory.Build.props b/src/libraries/System.Composition.Convention/Directory.Build.props
index a73f4a74fb4..d8220fc4143 100644
--- a/src/libraries/System.Composition.Convention/Directory.Build.props
+++ b/src/libraries/System.Composition.Convention/Directory.Build.props
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\System.Composition\Directory.Build.props" />
</Project> \ No newline at end of file
diff --git a/src/libraries/System.Composition.Convention/pkg/System.Composition.Convention.pkgproj b/src/libraries/System.Composition.Convention/pkg/System.Composition.Convention.pkgproj
index afe080f7791..e6113b0da77 100644
--- a/src/libraries/System.Composition.Convention/pkg/System.Composition.Convention.pkgproj
+++ b/src/libraries/System.Composition.Convention/pkg/System.Composition.Convention.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\src\System.Composition.Convention.csproj">
diff --git a/src/libraries/System.Composition.Convention/src/Configurations.props b/src/libraries/System.Composition.Convention/src/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.Composition.Convention/src/Configurations.props
+++ b/src/libraries/System.Composition.Convention/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Composition.Convention/src/Resources/Strings.resx b/src/libraries/System.Composition.Convention/src/Resources/Strings.resx
index 47a24e43393..b25ecac2f8d 100644
--- a/src/libraries/System.Composition.Convention/src/Resources/Strings.resx
+++ b/src/libraries/System.Composition.Convention/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Composition.Convention/tests/Configurations.props b/src/libraries/System.Composition.Convention/tests/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.Composition.Convention/tests/Configurations.props
+++ b/src/libraries/System.Composition.Convention/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Composition.Hosting/Directory.Build.props b/src/libraries/System.Composition.Hosting/Directory.Build.props
index a73f4a74fb4..d8220fc4143 100644
--- a/src/libraries/System.Composition.Hosting/Directory.Build.props
+++ b/src/libraries/System.Composition.Hosting/Directory.Build.props
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\System.Composition\Directory.Build.props" />
</Project> \ No newline at end of file
diff --git a/src/libraries/System.Composition.Hosting/pkg/System.Composition.Hosting.pkgproj b/src/libraries/System.Composition.Hosting/pkg/System.Composition.Hosting.pkgproj
index 8c7f9af79ad..90d5d5850b1 100644
--- a/src/libraries/System.Composition.Hosting/pkg/System.Composition.Hosting.pkgproj
+++ b/src/libraries/System.Composition.Hosting/pkg/System.Composition.Hosting.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\src\System.Composition.Hosting.csproj">
diff --git a/src/libraries/System.Composition.Hosting/src/Configurations.props b/src/libraries/System.Composition.Hosting/src/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.Composition.Hosting/src/Configurations.props
+++ b/src/libraries/System.Composition.Hosting/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Composition.Hosting/src/Resources/Strings.resx b/src/libraries/System.Composition.Hosting/src/Resources/Strings.resx
index 9fc699ace16..22472e694e6 100644
--- a/src/libraries/System.Composition.Hosting/src/Resources/Strings.resx
+++ b/src/libraries/System.Composition.Hosting/src/Resources/Strings.resx
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
diff --git a/src/libraries/System.Composition.Hosting/tests/Configurations.props b/src/libraries/System.Composition.Hosting/tests/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.Composition.Hosting/tests/Configurations.props
+++ b/src/libraries/System.Composition.Hosting/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Composition.Runtime/Directory.Build.props b/src/libraries/System.Composition.Runtime/Directory.Build.props
index a73f4a74fb4..d8220fc4143 100644
--- a/src/libraries/System.Composition.Runtime/Directory.Build.props
+++ b/src/libraries/System.Composition.Runtime/Directory.Build.props
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\System.Composition\Directory.Build.props" />
</Project> \ No newline at end of file
diff --git a/src/libraries/System.Composition.Runtime/pkg/System.Composition.Runtime.pkgproj b/src/libraries/System.Composition.Runtime/pkg/System.Composition.Runtime.pkgproj
index 30929b11194..0390368522f 100644
--- a/src/libraries/System.Composition.Runtime/pkg/System.Composition.Runtime.pkgproj
+++ b/src/libraries/System.Composition.Runtime/pkg/System.Composition.Runtime.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\src\System.Composition.Runtime.csproj">
diff --git a/src/libraries/System.Composition.Runtime/src/Configurations.props b/src/libraries/System.Composition.Runtime/src/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.Composition.Runtime/src/Configurations.props
+++ b/src/libraries/System.Composition.Runtime/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Composition.Runtime/src/Resources/Strings.resx b/src/libraries/System.Composition.Runtime/src/Resources/Strings.resx
index 3e1348ac7fd..cb3c61703e2 100644
--- a/src/libraries/System.Composition.Runtime/src/Resources/Strings.resx
+++ b/src/libraries/System.Composition.Runtime/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Composition.Runtime/tests/Configurations.props b/src/libraries/System.Composition.Runtime/tests/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.Composition.Runtime/tests/Configurations.props
+++ b/src/libraries/System.Composition.Runtime/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Composition.TypedParts/Directory.Build.props b/src/libraries/System.Composition.TypedParts/Directory.Build.props
index a73f4a74fb4..d8220fc4143 100644
--- a/src/libraries/System.Composition.TypedParts/Directory.Build.props
+++ b/src/libraries/System.Composition.TypedParts/Directory.Build.props
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\System.Composition\Directory.Build.props" />
</Project> \ No newline at end of file
diff --git a/src/libraries/System.Composition.TypedParts/pkg/System.Composition.TypedParts.pkgproj b/src/libraries/System.Composition.TypedParts/pkg/System.Composition.TypedParts.pkgproj
index bad6e7aa011..481b13255c7 100644
--- a/src/libraries/System.Composition.TypedParts/pkg/System.Composition.TypedParts.pkgproj
+++ b/src/libraries/System.Composition.TypedParts/pkg/System.Composition.TypedParts.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\src\System.Composition.TypedParts.csproj">
diff --git a/src/libraries/System.Composition.TypedParts/src/Configurations.props b/src/libraries/System.Composition.TypedParts/src/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.Composition.TypedParts/src/Configurations.props
+++ b/src/libraries/System.Composition.TypedParts/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Composition.TypedParts/src/Resources/Strings.resx b/src/libraries/System.Composition.TypedParts/src/Resources/Strings.resx
index 616b99291ae..2e7c6c9499b 100644
--- a/src/libraries/System.Composition.TypedParts/src/Resources/Strings.resx
+++ b/src/libraries/System.Composition.TypedParts/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Composition.TypedParts/tests/Configurations.props b/src/libraries/System.Composition.TypedParts/tests/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.Composition.TypedParts/tests/Configurations.props
+++ b/src/libraries/System.Composition.TypedParts/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Composition/Directory.Build.props b/src/libraries/System.Composition/Directory.Build.props
index 410ee61a6c0..d0a8e4dc55d 100644
--- a/src/libraries/System.Composition/Directory.Build.props
+++ b/src/libraries/System.Composition/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<PackageVersion>1.3.0</PackageVersion>
diff --git a/src/libraries/System.Composition/pkg/System.Composition.pkgproj b/src/libraries/System.Composition/pkg/System.Composition.pkgproj
index 7674f0ab733..88dc92c67e4 100644
--- a/src/libraries/System.Composition/pkg/System.Composition.pkgproj
+++ b/src/libraries/System.Composition/pkg/System.Composition.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\..\System.Composition.AttributedModel\pkg\System.Composition.AttributedModel.pkgproj" />
diff --git a/src/libraries/System.Composition/tests/Configurations.props b/src/libraries/System.Composition/tests/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.Composition/tests/Configurations.props
+++ b/src/libraries/System.Composition/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Composition/tests/Microsoft.Composition.Demos.ExtendedCollectionImports/Configurations.props b/src/libraries/System.Composition/tests/Microsoft.Composition.Demos.ExtendedCollectionImports/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Composition/tests/Microsoft.Composition.Demos.ExtendedCollectionImports/Configurations.props
+++ b/src/libraries/System.Composition/tests/Microsoft.Composition.Demos.ExtendedCollectionImports/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Composition/tests/TestLibrary/Configurations.props b/src/libraries/System.Composition/tests/TestLibrary/Configurations.props
index 4c498002c4c..016bde99d64 100644
--- a/src/libraries/System.Composition/tests/TestLibrary/Configurations.props
+++ b/src/libraries/System.Composition/tests/TestLibrary/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard1.3;
diff --git a/src/libraries/System.Configuration.ConfigurationManager/Directory.Build.props b/src/libraries/System.Configuration.ConfigurationManager/Directory.Build.props
index 6a43eb658bf..c63e87ea233 100644
--- a/src/libraries/System.Configuration.ConfigurationManager/Directory.Build.props
+++ b/src/libraries/System.Configuration.ConfigurationManager/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.2.0</AssemblyVersion>
diff --git a/src/libraries/System.Configuration.ConfigurationManager/pkg/System.Configuration.ConfigurationManager.pkgproj b/src/libraries/System.Configuration.ConfigurationManager/pkg/System.Configuration.ConfigurationManager.pkgproj
index 50ec38ffddf..bb9bf2cdaed 100644
--- a/src/libraries/System.Configuration.ConfigurationManager/pkg/System.Configuration.ConfigurationManager.pkgproj
+++ b/src/libraries/System.Configuration.ConfigurationManager/pkg/System.Configuration.ConfigurationManager.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.Configuration.ConfigurationManager.csproj">
diff --git a/src/libraries/System.Configuration.ConfigurationManager/ref/Configurations.props b/src/libraries/System.Configuration.ConfigurationManager/ref/Configurations.props
index cfd4fad4086..9f1896f9a51 100644
--- a/src/libraries/System.Configuration.ConfigurationManager/ref/Configurations.props
+++ b/src/libraries/System.Configuration.ConfigurationManager/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<PackageConfigurations>
netstandard;
diff --git a/src/libraries/System.Configuration.ConfigurationManager/src/Configurations.props b/src/libraries/System.Configuration.ConfigurationManager/src/Configurations.props
index 2ee0430b034..414c9fc84c8 100644
--- a/src/libraries/System.Configuration.ConfigurationManager/src/Configurations.props
+++ b/src/libraries/System.Configuration.ConfigurationManager/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<PackageConfigurations>
netstandard;
diff --git a/src/libraries/System.Configuration.ConfigurationManager/src/Resources/Strings.resx b/src/libraries/System.Configuration.ConfigurationManager/src/Resources/Strings.resx
index 0b60d872dff..2dd95efcdbe 100644
--- a/src/libraries/System.Configuration.ConfigurationManager/src/Resources/Strings.resx
+++ b/src/libraries/System.Configuration.ConfigurationManager/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Configuration.ConfigurationManager/tests/Configurations.props b/src/libraries/System.Configuration.ConfigurationManager/tests/Configurations.props
index fc9ef9822c0..a0590ba3b10 100644
--- a/src/libraries/System.Configuration.ConfigurationManager/tests/Configurations.props
+++ b/src/libraries/System.Configuration.ConfigurationManager/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Configuration.ConfigurationManager/tests/Resources/Strings.resx b/src/libraries/System.Configuration.ConfigurationManager/tests/Resources/Strings.resx
index 822bc4e7004..217537dd116 100644
--- a/src/libraries/System.Configuration.ConfigurationManager/tests/Resources/Strings.resx
+++ b/src/libraries/System.Configuration.ConfigurationManager/tests/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/System.Console/Directory.Build.props b/src/libraries/System.Console/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Console/Directory.Build.props
+++ b/src/libraries/System.Console/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Console/ref/Configurations.props b/src/libraries/System.Console/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.Console/ref/Configurations.props
+++ b/src/libraries/System.Console/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Console/src/Configurations.props b/src/libraries/System.Console/src/Configurations.props
index 62eb1c47768..421f137c246 100644
--- a/src/libraries/System.Console/src/Configurations.props
+++ b/src/libraries/System.Console/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Unix;
diff --git a/src/libraries/System.Console/src/Resources/Strings.resx b/src/libraries/System.Console/src/Resources/Strings.resx
index 97a99e5d4c5..6f16c49d115 100644
--- a/src/libraries/System.Console/src/Resources/Strings.resx
+++ b/src/libraries/System.Console/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/System.Console/tests/Configurations.props b/src/libraries/System.Console/tests/Configurations.props
index 7d8424e0716..04de91de032 100644
--- a/src/libraries/System.Console/tests/Configurations.props
+++ b/src/libraries/System.Console/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Console/tests/Performance/Configurations.props b/src/libraries/System.Console/tests/Performance/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Console/tests/Performance/Configurations.props
+++ b/src/libraries/System.Console/tests/Performance/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Data.Common/Directory.Build.props b/src/libraries/System.Data.Common/Directory.Build.props
index 047458dfc57..988124d2d8e 100644
--- a/src/libraries/System.Data.Common/Directory.Build.props
+++ b/src/libraries/System.Data.Common/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.2.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Data.Common/ref/Configurations.props b/src/libraries/System.Data.Common/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.Data.Common/ref/Configurations.props
+++ b/src/libraries/System.Data.Common/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Data.Common/src/Configurations.props b/src/libraries/System.Data.Common/src/Configurations.props
index f1e1082d04c..bb4021beefe 100644
--- a/src/libraries/System.Data.Common/src/Configurations.props
+++ b/src/libraries/System.Data.Common/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.Data.Common/src/Resources/Strings.resx b/src/libraries/System.Data.Common/src/Resources/Strings.resx
index 39443576d30..8bdbcac0352 100644
--- a/src/libraries/System.Data.Common/src/Resources/Strings.resx
+++ b/src/libraries/System.Data.Common/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Data.Common/src/Resources/System.Data.Common.rd.xml b/src/libraries/System.Data.Common/src/Resources/System.Data.Common.rd.xml
index 75ce7eef5fb..952bdbed145 100644
--- a/src/libraries/System.Data.Common/src/Resources/System.Data.Common.rd.xml
+++ b/src/libraries/System.Data.Common/src/Resources/System.Data.Common.rd.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Directives xmlns="http://schemas.microsoft.com/netfx/2013/01/metadata">
<Library>
<!-- TODO there are probably more directives necessary -->
diff --git a/src/libraries/System.Data.Common/tests/Configurations.props b/src/libraries/System.Data.Common/tests/Configurations.props
index 8b803e0772f..e43964ecf9e 100644
--- a/src/libraries/System.Data.Common/tests/Configurations.props
+++ b/src/libraries/System.Data.Common/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Data.DataSetExtensions/Directory.Build.props b/src/libraries/System.Data.DataSetExtensions/Directory.Build.props
index 8f0026bf538..0985cc9c5fd 100644
--- a/src/libraries/System.Data.DataSetExtensions/Directory.Build.props
+++ b/src/libraries/System.Data.DataSetExtensions/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
diff --git a/src/libraries/System.Data.DataSetExtensions/pkg/System.Data.DataSetExtensions.pkgproj b/src/libraries/System.Data.DataSetExtensions/pkg/System.Data.DataSetExtensions.pkgproj
index 94d42b1425c..2f97767836c 100644
--- a/src/libraries/System.Data.DataSetExtensions/pkg/System.Data.DataSetExtensions.pkgproj
+++ b/src/libraries/System.Data.DataSetExtensions/pkg/System.Data.DataSetExtensions.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.Data.DataSetExtensions.csproj">
diff --git a/src/libraries/System.Data.DataSetExtensions/ref/Configurations.props b/src/libraries/System.Data.DataSetExtensions/ref/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.Data.DataSetExtensions/ref/Configurations.props
+++ b/src/libraries/System.Data.DataSetExtensions/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Data.DataSetExtensions/src/Configurations.props b/src/libraries/System.Data.DataSetExtensions/src/Configurations.props
index 77e29493b0e..aee5c900a4d 100644
--- a/src/libraries/System.Data.DataSetExtensions/src/Configurations.props
+++ b/src/libraries/System.Data.DataSetExtensions/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Data.DataSetExtensions/src/Resources/Strings.resx b/src/libraries/System.Data.DataSetExtensions/src/Resources/Strings.resx
index 32ce22b2377..6ab7f24dcd2 100644
--- a/src/libraries/System.Data.DataSetExtensions/src/Resources/Strings.resx
+++ b/src/libraries/System.Data.DataSetExtensions/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Data.DataSetExtensions/tests/Configurations.props b/src/libraries/System.Data.DataSetExtensions/tests/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.Data.DataSetExtensions/tests/Configurations.props
+++ b/src/libraries/System.Data.DataSetExtensions/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Data.Odbc/Directory.Build.props b/src/libraries/System.Data.Odbc/Directory.Build.props
index 6c5c34bc9f4..75494287ea7 100644
--- a/src/libraries/System.Data.Odbc/Directory.Build.props
+++ b/src/libraries/System.Data.Odbc/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Data.Odbc/pkg/System.Data.Odbc.pkgproj b/src/libraries/System.Data.Odbc/pkg/System.Data.Odbc.pkgproj
index 18d1c1ea7bf..71616c03491 100644
--- a/src/libraries/System.Data.Odbc/pkg/System.Data.Odbc.pkgproj
+++ b/src/libraries/System.Data.Odbc/pkg/System.Data.Odbc.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.Data.Odbc.csproj">
diff --git a/src/libraries/System.Data.Odbc/ref/Configurations.props b/src/libraries/System.Data.Odbc/ref/Configurations.props
index 6308641bd9a..ed1dc44dd48 100644
--- a/src/libraries/System.Data.Odbc/ref/Configurations.props
+++ b/src/libraries/System.Data.Odbc/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Data.Odbc/src/Configurations.props b/src/libraries/System.Data.Odbc/src/Configurations.props
index b0b3fb196b0..3430266fd63 100644
--- a/src/libraries/System.Data.Odbc/src/Configurations.props
+++ b/src/libraries/System.Data.Odbc/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<PackageConfigurations>
netcoreapp2.0-FreeBSD;
diff --git a/src/libraries/System.Data.Odbc/src/Resources/Strings.resx b/src/libraries/System.Data.Odbc/src/Resources/Strings.resx
index 60e59fb70ae..1208e92193f 100644
--- a/src/libraries/System.Data.Odbc/src/Resources/Strings.resx
+++ b/src/libraries/System.Data.Odbc/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/System.Data.Odbc/tests/Configurations.props b/src/libraries/System.Data.Odbc/tests/Configurations.props
index 30935d672ac..88f254cfa6f 100644
--- a/src/libraries/System.Data.Odbc/tests/Configurations.props
+++ b/src/libraries/System.Data.Odbc/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp-FreeBSD;
diff --git a/src/libraries/System.Data.SqlClient/Directory.Build.props b/src/libraries/System.Data.SqlClient/Directory.Build.props
index 3dd700d4a97..11dfd9dcef1 100644
--- a/src/libraries/System.Data.SqlClient/Directory.Build.props
+++ b/src/libraries/System.Data.SqlClient/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<!-- Must be kept in sync with pkg\Microsoft.Windows.Compatibility\Microsoft.Windows.Compatibility.pkgproj -->
diff --git a/src/libraries/System.Data.SqlClient/pkg/System.Data.SqlClient.pkgproj b/src/libraries/System.Data.SqlClient/pkg/System.Data.SqlClient.pkgproj
index f741b8e8197..807212a50d2 100644
--- a/src/libraries/System.Data.SqlClient/pkg/System.Data.SqlClient.pkgproj
+++ b/src/libraries/System.Data.SqlClient/pkg/System.Data.SqlClient.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.Data.SqlClient.csproj">
diff --git a/src/libraries/System.Data.SqlClient/ref/Configurations.props b/src/libraries/System.Data.SqlClient/ref/Configurations.props
index df79e9d4aac..329687c1cd2 100644
--- a/src/libraries/System.Data.SqlClient/ref/Configurations.props
+++ b/src/libraries/System.Data.SqlClient/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<PackageConfigurations>
netcoreapp2.1;
diff --git a/src/libraries/System.Data.SqlClient/src/Configurations.props b/src/libraries/System.Data.SqlClient/src/Configurations.props
index d031687dd6c..d0c7b4674c9 100644
--- a/src/libraries/System.Data.SqlClient/src/Configurations.props
+++ b/src/libraries/System.Data.SqlClient/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<PackageConfigurations>
netstandard-Unix;
diff --git a/src/libraries/System.Data.SqlClient/src/GenerateThisAssemblyCs.targets b/src/libraries/System.Data.SqlClient/src/GenerateThisAssemblyCs.targets
index ee015011f5a..a01191f8d4a 100644
--- a/src/libraries/System.Data.SqlClient/src/GenerateThisAssemblyCs.targets
+++ b/src/libraries/System.Data.SqlClient/src/GenerateThisAssemblyCs.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<Compile Include="$(IntermediateOutputPath)\ThisAssembly.cs"/>
</ItemGroup>
diff --git a/src/libraries/System.Data.SqlClient/src/Resources/Strings.resx b/src/libraries/System.Data.SqlClient/src/Resources/Strings.resx
index 73f9579ea2c..ee6fbd18c2d 100644
--- a/src/libraries/System.Data.SqlClient/src/Resources/Strings.resx
+++ b/src/libraries/System.Data.SqlClient/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/System.Data.SqlClient/tests/FunctionalTests/Configurations.props b/src/libraries/System.Data.SqlClient/tests/FunctionalTests/Configurations.props
index 0b74e003695..7639596dc4d 100644
--- a/src/libraries/System.Data.SqlClient/tests/FunctionalTests/Configurations.props
+++ b/src/libraries/System.Data.SqlClient/tests/FunctionalTests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard-Unix;
diff --git a/src/libraries/System.Data.SqlClient/tests/ManualTests/Configurations.props b/src/libraries/System.Data.SqlClient/tests/ManualTests/Configurations.props
index 77a4b65bc94..febffb03ac6 100644
--- a/src/libraries/System.Data.SqlClient/tests/ManualTests/Configurations.props
+++ b/src/libraries/System.Data.SqlClient/tests/ManualTests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Data.SqlClient/tests/ManualTests/SQL/UdtTest/UDTs/Address/Configurations.props b/src/libraries/System.Data.SqlClient/tests/ManualTests/SQL/UdtTest/UDTs/Address/Configurations.props
index e172d8ba0cf..b6252750f8e 100644
--- a/src/libraries/System.Data.SqlClient/tests/ManualTests/SQL/UdtTest/UDTs/Address/Configurations.props
+++ b/src/libraries/System.Data.SqlClient/tests/ManualTests/SQL/UdtTest/UDTs/Address/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Data.SqlClient/tests/ManualTests/SQL/UdtTest/UDTs/Circle/Configurations.props b/src/libraries/System.Data.SqlClient/tests/ManualTests/SQL/UdtTest/UDTs/Circle/Configurations.props
index e172d8ba0cf..b6252750f8e 100644
--- a/src/libraries/System.Data.SqlClient/tests/ManualTests/SQL/UdtTest/UDTs/Circle/Configurations.props
+++ b/src/libraries/System.Data.SqlClient/tests/ManualTests/SQL/UdtTest/UDTs/Circle/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Data.SqlClient/tests/ManualTests/SQL/UdtTest/UDTs/Shapes/Configurations.props b/src/libraries/System.Data.SqlClient/tests/ManualTests/SQL/UdtTest/UDTs/Shapes/Configurations.props
index e172d8ba0cf..b6252750f8e 100644
--- a/src/libraries/System.Data.SqlClient/tests/ManualTests/SQL/UdtTest/UDTs/Shapes/Configurations.props
+++ b/src/libraries/System.Data.SqlClient/tests/ManualTests/SQL/UdtTest/UDTs/Shapes/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Data.SqlClient/tests/ManualTests/SQL/UdtTest/UDTs/Utf8String/Configurations.props b/src/libraries/System.Data.SqlClient/tests/ManualTests/SQL/UdtTest/UDTs/Utf8String/Configurations.props
index e172d8ba0cf..b6252750f8e 100644
--- a/src/libraries/System.Data.SqlClient/tests/ManualTests/SQL/UdtTest/UDTs/Utf8String/Configurations.props
+++ b/src/libraries/System.Data.SqlClient/tests/ManualTests/SQL/UdtTest/UDTs/Utf8String/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Data.SqlClient/tests/StressTests/IMonitorLoader/Configurations.props b/src/libraries/System.Data.SqlClient/tests/StressTests/IMonitorLoader/Configurations.props
index 8b0be9587f9..24168e5ec57 100644
--- a/src/libraries/System.Data.SqlClient/tests/StressTests/IMonitorLoader/Configurations.props
+++ b/src/libraries/System.Data.SqlClient/tests/StressTests/IMonitorLoader/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard-Unix;
diff --git a/src/libraries/System.Data.SqlClient/tests/StressTests/System.Data.SqlClient.Stress.Tests/Configurations.props b/src/libraries/System.Data.SqlClient/tests/StressTests/System.Data.SqlClient.Stress.Tests/Configurations.props
index 8b0be9587f9..24168e5ec57 100644
--- a/src/libraries/System.Data.SqlClient/tests/StressTests/System.Data.SqlClient.Stress.Tests/Configurations.props
+++ b/src/libraries/System.Data.SqlClient/tests/StressTests/System.Data.SqlClient.Stress.Tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard-Unix;
diff --git a/src/libraries/System.Data.SqlClient/tests/StressTests/System.Data.StressFramework/Configurations.props b/src/libraries/System.Data.SqlClient/tests/StressTests/System.Data.StressFramework/Configurations.props
index 8b0be9587f9..24168e5ec57 100644
--- a/src/libraries/System.Data.SqlClient/tests/StressTests/System.Data.StressFramework/Configurations.props
+++ b/src/libraries/System.Data.SqlClient/tests/StressTests/System.Data.StressFramework/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard-Unix;
diff --git a/src/libraries/System.Data.SqlClient/tests/StressTests/System.Data.StressRunner/Configurations.props b/src/libraries/System.Data.SqlClient/tests/StressTests/System.Data.StressRunner/Configurations.props
index 8b0be9587f9..24168e5ec57 100644
--- a/src/libraries/System.Data.SqlClient/tests/StressTests/System.Data.StressRunner/Configurations.props
+++ b/src/libraries/System.Data.SqlClient/tests/StressTests/System.Data.StressRunner/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard-Unix;
diff --git a/src/libraries/System.Data.SqlClient/tests/Tools/TDS/TDS.EndPoint/Configurations.props b/src/libraries/System.Data.SqlClient/tests/Tools/TDS/TDS.EndPoint/Configurations.props
index 8b0be9587f9..24168e5ec57 100644
--- a/src/libraries/System.Data.SqlClient/tests/Tools/TDS/TDS.EndPoint/Configurations.props
+++ b/src/libraries/System.Data.SqlClient/tests/Tools/TDS/TDS.EndPoint/Configurations.props
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-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard-Unix;
diff --git a/src/libraries/System.Data.SqlClient/tests/Tools/TDS/TDS.Servers/Configurations.props b/src/libraries/System.Data.SqlClient/tests/Tools/TDS/TDS.Servers/Configurations.props
index 8b0be9587f9..24168e5ec57 100644
--- a/src/libraries/System.Data.SqlClient/tests/Tools/TDS/TDS.Servers/Configurations.props
+++ b/src/libraries/System.Data.SqlClient/tests/Tools/TDS/TDS.Servers/Configurations.props
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-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard-Unix;
diff --git a/src/libraries/System.Data.SqlClient/tests/Tools/TDS/TDS/Configurations.props b/src/libraries/System.Data.SqlClient/tests/Tools/TDS/TDS/Configurations.props
index 8b0be9587f9..24168e5ec57 100644
--- a/src/libraries/System.Data.SqlClient/tests/Tools/TDS/TDS/Configurations.props
+++ b/src/libraries/System.Data.SqlClient/tests/Tools/TDS/TDS/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
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diff --git a/src/libraries/System.Diagnostics.Contracts/Directory.Build.props b/src/libraries/System.Diagnostics.Contracts/Directory.Build.props
index cac4c947b8b..dd429856628 100644
--- a/src/libraries/System.Diagnostics.Contracts/Directory.Build.props
+++ b/src/libraries/System.Diagnostics.Contracts/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.3.0</AssemblyVersion>
diff --git a/src/libraries/System.Diagnostics.Contracts/ref/Configurations.props b/src/libraries/System.Diagnostics.Contracts/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.Diagnostics.Contracts/ref/Configurations.props
+++ b/src/libraries/System.Diagnostics.Contracts/ref/Configurations.props
@@ -1,5 +1,4 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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diff --git a/src/libraries/System.Diagnostics.Contracts/src/Configurations.props b/src/libraries/System.Diagnostics.Contracts/src/Configurations.props
index 6da09827f37..8e16bc6010c 100644
--- a/src/libraries/System.Diagnostics.Contracts/src/Configurations.props
+++ b/src/libraries/System.Diagnostics.Contracts/src/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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diff --git a/src/libraries/System.Diagnostics.Contracts/tests/Configurations.props b/src/libraries/System.Diagnostics.Contracts/tests/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.Diagnostics.Contracts/tests/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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diff --git a/src/libraries/System.Diagnostics.Debug/Directory.Build.props b/src/libraries/System.Diagnostics.Debug/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Diagnostics.Debug/Directory.Build.props
+++ b/src/libraries/System.Diagnostics.Debug/Directory.Build.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Diagnostics.Debug/ref/Configurations.props b/src/libraries/System.Diagnostics.Debug/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.Diagnostics.Debug/ref/Configurations.props
+++ b/src/libraries/System.Diagnostics.Debug/ref/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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diff --git a/src/libraries/System.Diagnostics.Debug/src/Configurations.props b/src/libraries/System.Diagnostics.Debug/src/Configurations.props
index 075270b6ee7..11c9656a5c7 100644
--- a/src/libraries/System.Diagnostics.Debug/src/Configurations.props
+++ b/src/libraries/System.Diagnostics.Debug/src/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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diff --git a/src/libraries/System.Diagnostics.Debug/tests/Configurations.props b/src/libraries/System.Diagnostics.Debug/tests/Configurations.props
index 77a4b65bc94..2bc19ff4170 100644
--- a/src/libraries/System.Diagnostics.Debug/tests/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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diff --git a/src/libraries/System.Diagnostics.DiagnosticSource/Directory.Build.props b/src/libraries/System.Diagnostics.DiagnosticSource/Directory.Build.props
index 8014598790e..65e1cbec6f5 100644
--- a/src/libraries/System.Diagnostics.DiagnosticSource/Directory.Build.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.4.0</AssemblyVersion>
diff --git a/src/libraries/System.Diagnostics.DiagnosticSource/pkg/System.Diagnostics.DiagnosticSource.pkgproj b/src/libraries/System.Diagnostics.DiagnosticSource/pkg/System.Diagnostics.DiagnosticSource.pkgproj
index 5c0fe4044e0..eabb6507738 100644
--- a/src/libraries/System.Diagnostics.DiagnosticSource/pkg/System.Diagnostics.DiagnosticSource.pkgproj
+++ b/src/libraries/System.Diagnostics.DiagnosticSource/pkg/System.Diagnostics.DiagnosticSource.pkgproj
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\src\System.Diagnostics.DiagnosticSource.csproj">
diff --git a/src/libraries/System.Diagnostics.DiagnosticSource/ref/Configurations.props b/src/libraries/System.Diagnostics.DiagnosticSource/ref/Configurations.props
index 7b5f53ade59..340d3b7658e 100644
--- a/src/libraries/System.Diagnostics.DiagnosticSource/ref/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<PropertyGroup>
<PackageConfigurations>
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diff --git a/src/libraries/System.Diagnostics.DiagnosticSource/src/Configurations.props b/src/libraries/System.Diagnostics.DiagnosticSource/src/Configurations.props
index 55216e40dfc..1b1cb95ce5f 100644
--- a/src/libraries/System.Diagnostics.DiagnosticSource/src/Configurations.props
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@@ -1,5 +1,4 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<PropertyGroup>
<PackageConfigurations>
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diff --git a/src/libraries/System.Diagnostics.DiagnosticSource/tests/Configurations.props b/src/libraries/System.Diagnostics.DiagnosticSource/tests/Configurations.props
index 921f54de300..7795d73e286 100644
--- a/src/libraries/System.Diagnostics.DiagnosticSource/tests/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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diff --git a/src/libraries/System.Diagnostics.EventLog/Directory.Build.props b/src/libraries/System.Diagnostics.EventLog/Directory.Build.props
index 6c5c34bc9f4..75494287ea7 100644
--- a/src/libraries/System.Diagnostics.EventLog/Directory.Build.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Diagnostics.EventLog/pkg/System.Diagnostics.EventLog.pkgproj b/src/libraries/System.Diagnostics.EventLog/pkg/System.Diagnostics.EventLog.pkgproj
index b0f5b646fb3..3820dab528c 100644
--- a/src/libraries/System.Diagnostics.EventLog/pkg/System.Diagnostics.EventLog.pkgproj
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.Diagnostics.EventLog.csproj">
diff --git a/src/libraries/System.Diagnostics.EventLog/ref/Configurations.props b/src/libraries/System.Diagnostics.EventLog/ref/Configurations.props
index 4b08ca9da05..cd2b8092136 100644
--- a/src/libraries/System.Diagnostics.EventLog/ref/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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diff --git a/src/libraries/System.Diagnostics.EventLog/src/Configurations.props b/src/libraries/System.Diagnostics.EventLog/src/Configurations.props
index 940e8f64352..111337f10dd 100644
--- a/src/libraries/System.Diagnostics.EventLog/src/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
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<PackageConfigurations>
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diff --git a/src/libraries/System.Diagnostics.EventLog/src/Resources/Strings.resx b/src/libraries/System.Diagnostics.EventLog/src/Resources/Strings.resx
index 43589ab7e27..ffeb7516c3a 100644
--- a/src/libraries/System.Diagnostics.EventLog/src/Resources/Strings.resx
+++ b/src/libraries/System.Diagnostics.EventLog/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/System.Diagnostics.EventLog/tests/Configurations.props b/src/libraries/System.Diagnostics.EventLog/tests/Configurations.props
index 237253623ae..79e917c1975 100644
--- a/src/libraries/System.Diagnostics.EventLog/tests/Configurations.props
+++ b/src/libraries/System.Diagnostics.EventLog/tests/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
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diff --git a/src/libraries/System.Diagnostics.FileVersionInfo/Directory.Build.props b/src/libraries/System.Diagnostics.FileVersionInfo/Directory.Build.props
index f1692a14509..21df61f36c2 100644
--- a/src/libraries/System.Diagnostics.FileVersionInfo/Directory.Build.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.3.0</AssemblyVersion>
diff --git a/src/libraries/System.Diagnostics.FileVersionInfo/ref/Configurations.props b/src/libraries/System.Diagnostics.FileVersionInfo/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.Diagnostics.FileVersionInfo/ref/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<PropertyGroup>
<BuildConfigurations>
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diff --git a/src/libraries/System.Diagnostics.FileVersionInfo/src/Configurations.props b/src/libraries/System.Diagnostics.FileVersionInfo/src/Configurations.props
index 1d686837b0a..1ad17d8810a 100644
--- a/src/libraries/System.Diagnostics.FileVersionInfo/src/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
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diff --git a/src/libraries/System.Diagnostics.FileVersionInfo/src/Resources/Strings.resx b/src/libraries/System.Diagnostics.FileVersionInfo/src/Resources/Strings.resx
index 5cd9017f5ef..2d12230d118 100644
--- a/src/libraries/System.Diagnostics.FileVersionInfo/src/Resources/Strings.resx
+++ b/src/libraries/System.Diagnostics.FileVersionInfo/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/System.Diagnostics.FileVersionInfo/tests/NativeConsoleApp/Configurations.props b/src/libraries/System.Diagnostics.FileVersionInfo/tests/NativeConsoleApp/Configurations.props
index fc9ef9822c0..7e0dbee015f 100644
--- a/src/libraries/System.Diagnostics.FileVersionInfo/tests/NativeConsoleApp/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Diagnostics.FileVersionInfo/tests/NativeConsoleApp/NativeConsoleApp.vcxproj b/src/libraries/System.Diagnostics.FileVersionInfo/tests/NativeConsoleApp/NativeConsoleApp.vcxproj
index 5faf9da6c56..0a0d5639da8 100644
--- a/src/libraries/System.Diagnostics.FileVersionInfo/tests/NativeConsoleApp/NativeConsoleApp.vcxproj
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-<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup Label="ProjectConfigurations">
<ProjectConfiguration Include="Release|x64">
diff --git a/src/libraries/System.Diagnostics.FileVersionInfo/tests/NativeLibrary/Configurations.props b/src/libraries/System.Diagnostics.FileVersionInfo/tests/NativeLibrary/Configurations.props
index fc9ef9822c0..7e0dbee015f 100644
--- a/src/libraries/System.Diagnostics.FileVersionInfo/tests/NativeLibrary/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Diagnostics.FileVersionInfo/tests/NativeLibrary/NativeLibrary.vcxproj b/src/libraries/System.Diagnostics.FileVersionInfo/tests/NativeLibrary/NativeLibrary.vcxproj
index 2afd2b444e4..f47779afedd 100644
--- a/src/libraries/System.Diagnostics.FileVersionInfo/tests/NativeLibrary/NativeLibrary.vcxproj
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-<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup Label="ProjectConfigurations">
<ProjectConfiguration Include="Release|x64">
diff --git a/src/libraries/System.Diagnostics.FileVersionInfo/tests/SecondNativeLibrary/Configurations.props b/src/libraries/System.Diagnostics.FileVersionInfo/tests/SecondNativeLibrary/Configurations.props
index fc9ef9822c0..7e0dbee015f 100644
--- a/src/libraries/System.Diagnostics.FileVersionInfo/tests/SecondNativeLibrary/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Diagnostics.FileVersionInfo/tests/SecondNativeLibrary/SecondNativeLibrary.vcxproj b/src/libraries/System.Diagnostics.FileVersionInfo/tests/SecondNativeLibrary/SecondNativeLibrary.vcxproj
index 69c6ed60fe1..d7f4fd3c53e 100644
--- a/src/libraries/System.Diagnostics.FileVersionInfo/tests/SecondNativeLibrary/SecondNativeLibrary.vcxproj
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-<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup Label="ProjectConfigurations">
<ProjectConfiguration Include="Release|x64">
diff --git a/src/libraries/System.Diagnostics.FileVersionInfo/tests/System.Diagnostics.FileVersionInfo.TestAssembly/Configurations.props b/src/libraries/System.Diagnostics.FileVersionInfo/tests/System.Diagnostics.FileVersionInfo.TestAssembly/Configurations.props
index fc9ef9822c0..7e0dbee015f 100644
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<PropertyGroup>
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diff --git a/src/libraries/System.Diagnostics.FileVersionInfo/tests/System.Diagnostics.FileVersionInfo.Tests/Configurations.props b/src/libraries/System.Diagnostics.FileVersionInfo/tests/System.Diagnostics.FileVersionInfo.Tests/Configurations.props
index 58b5995845e..b37136c85ac 100644
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
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diff --git a/src/libraries/System.Diagnostics.PerformanceCounter/Directory.Build.props b/src/libraries/System.Diagnostics.PerformanceCounter/Directory.Build.props
index 6c5c34bc9f4..75494287ea7 100644
--- a/src/libraries/System.Diagnostics.PerformanceCounter/Directory.Build.props
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-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Diagnostics.PerformanceCounter/pkg/System.Diagnostics.PerformanceCounter.pkgproj b/src/libraries/System.Diagnostics.PerformanceCounter/pkg/System.Diagnostics.PerformanceCounter.pkgproj
index 81b114acfd6..e33760550c8 100644
--- a/src/libraries/System.Diagnostics.PerformanceCounter/pkg/System.Diagnostics.PerformanceCounter.pkgproj
+++ b/src/libraries/System.Diagnostics.PerformanceCounter/pkg/System.Diagnostics.PerformanceCounter.pkgproj
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
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index c606373c53f..f3d0f8ba0f7 100644
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index b5e4ccac8f2..2803d07fd75 100644
--- a/src/libraries/System.Diagnostics.PerformanceCounter/src/Configurations.props
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diff --git a/src/libraries/System.Diagnostics.PerformanceCounter/src/Resources/Strings.resx b/src/libraries/System.Diagnostics.PerformanceCounter/src/Resources/Strings.resx
index aa7e4cf7116..4aa54137162 100644
--- a/src/libraries/System.Diagnostics.PerformanceCounter/src/Resources/Strings.resx
+++ b/src/libraries/System.Diagnostics.PerformanceCounter/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/System.Diagnostics.PerformanceCounter/tests/Configurations.props b/src/libraries/System.Diagnostics.PerformanceCounter/tests/Configurations.props
index 51d1fc23097..258f866af54 100644
--- a/src/libraries/System.Diagnostics.PerformanceCounter/tests/Configurations.props
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diff --git a/src/libraries/System.Diagnostics.Process/Directory.Build.props b/src/libraries/System.Diagnostics.Process/Directory.Build.props
index 047458dfc57..988124d2d8e 100644
--- a/src/libraries/System.Diagnostics.Process/Directory.Build.props
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@@ -1,5 +1,4 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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diff --git a/src/libraries/System.Diagnostics.Process/ref/Configurations.props b/src/libraries/System.Diagnostics.Process/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.Diagnostics.Process/ref/Configurations.props
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index 8e84cf544a0..114d148a04d 100644
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index c923d7a3c46..744a1e05f7d 100644
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@@ -1,5 +1,4 @@
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Microsoft ResX Schema
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index 5d07f60b8f6..72b33f4b940 100644
--- a/src/libraries/System.Diagnostics.Process/tests/Configurations.props
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diff --git a/src/libraries/System.Diagnostics.Process/tests/Performance/Configurations.props b/src/libraries/System.Diagnostics.Process/tests/Performance/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Diagnostics.Process/tests/Performance/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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diff --git a/src/libraries/System.Diagnostics.StackTrace/Directory.Build.props b/src/libraries/System.Diagnostics.StackTrace/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Diagnostics.StackTrace/Directory.Build.props
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@@ -1,5 +1,4 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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index c7017558637..acf56fa2750 100644
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index 246c274cbef..46a01fa07ee 100644
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index 78953dfc885..2870dced459 100644
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index 166d0a25e06..0025ce6cf71 100644
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index c7017558637..acf56fa2750 100644
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index bbb5be814ea..095c4309fec 100644
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diff --git a/src/libraries/System.Diagnostics.TextWriterTraceListener/src/Resources/Strings.resx b/src/libraries/System.Diagnostics.TextWriterTraceListener/src/Resources/Strings.resx
index 235c27370f4..12b248f4dde 100644
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diff --git a/src/libraries/System.Diagnostics.TextWriterTraceListener/tests/Configurations.props b/src/libraries/System.Diagnostics.TextWriterTraceListener/tests/Configurations.props
index 6a544338f32..caa17156119 100644
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diff --git a/src/libraries/System.Diagnostics.Tools/Directory.Build.props b/src/libraries/System.Diagnostics.Tools/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
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diff --git a/src/libraries/System.Diagnostics.Tools/ref/Configurations.props b/src/libraries/System.Diagnostics.Tools/ref/Configurations.props
index c7017558637..acf56fa2750 100644
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index ea34d6257b8..7be6fd9cfa5 100644
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index 166d0a25e06..0025ce6cf71 100644
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index c7017558637..acf56fa2750 100644
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index 8e84cf544a0..114d148a04d 100644
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index d726fb97c60..8b4f1d87314 100644
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diff --git a/src/libraries/System.Diagnostics.TraceSource/tests/Configurations.props b/src/libraries/System.Diagnostics.TraceSource/tests/Configurations.props
index 9cb8d824d9f..9665ecd73ad 100644
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index 047458dfc57..988124d2d8e 100644
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index c7017558637..acf56fa2750 100644
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index ea34d6257b8..7be6fd9cfa5 100644
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index 1040c9ba37f..dd006cdc1e7 100644
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diff --git a/src/libraries/System.Diagnostics.Tracing/tests/EvtSrcForReflection/EsrResources.fr-FR.resx b/src/libraries/System.Diagnostics.Tracing/tests/EvtSrcForReflection/EsrResources.fr-FR.resx
index 28e8346deae..c14f83042ec 100644
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diff --git a/src/libraries/System.Diagnostics.Tracing/tests/EvtSrcForReflection/EsrResources.resx b/src/libraries/System.Diagnostics.Tracing/tests/EvtSrcForReflection/EsrResources.resx
index 969621a1f80..28da6efdf88 100644
--- a/src/libraries/System.Diagnostics.Tracing/tests/EvtSrcForReflection/EsrResources.resx
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diff --git a/src/libraries/System.DirectoryServices.AccountManagement/Directory.Build.props b/src/libraries/System.DirectoryServices.AccountManagement/Directory.Build.props
index 801e8b21a2a..2a7de3529ba 100644
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diff --git a/src/libraries/System.DirectoryServices.AccountManagement/pkg/System.DirectoryServices.AccountManagement.pkgproj b/src/libraries/System.DirectoryServices.AccountManagement/pkg/System.DirectoryServices.AccountManagement.pkgproj
index 55792c18113..b56c2177122 100644
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<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
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index c398e42e899..ff0d415e459 100644
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diff --git a/src/libraries/System.DirectoryServices.AccountManagement/src/Configurations.props b/src/libraries/System.DirectoryServices.AccountManagement/src/Configurations.props
index e3223718322..a04b3b7975b 100644
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<PackageConfigurations>
netstandard;
diff --git a/src/libraries/System.DirectoryServices.AccountManagement/src/Resources/Strings.resx b/src/libraries/System.DirectoryServices.AccountManagement/src/Resources/Strings.resx
index d45f4c3a742..2bde8790502 100644
--- a/src/libraries/System.DirectoryServices.AccountManagement/src/Resources/Strings.resx
+++ b/src/libraries/System.DirectoryServices.AccountManagement/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/System.DirectoryServices.AccountManagement/tests/Configurations.props b/src/libraries/System.DirectoryServices.AccountManagement/tests/Configurations.props
index 51d1fc23097..258f866af54 100644
--- a/src/libraries/System.DirectoryServices.AccountManagement/tests/Configurations.props
+++ b/src/libraries/System.DirectoryServices.AccountManagement/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Windows_NT;
diff --git a/src/libraries/System.DirectoryServices.AccountManagement/tests/LDAP.Configuration.xml b/src/libraries/System.DirectoryServices.AccountManagement/tests/LDAP.Configuration.xml
index 16d7b6c5c2c..01ba50235f8 100644
--- a/src/libraries/System.DirectoryServices.AccountManagement/tests/LDAP.Configuration.xml
+++ b/src/libraries/System.DirectoryServices.AccountManagement/tests/LDAP.Configuration.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
<!--
To enable the tests marked with [ConditionalFact(nameof(IsActiveDirectoryServer))], need to setup a Windows Active Directory server and provide the needed server info here.
diff --git a/src/libraries/System.DirectoryServices.Protocols/Directory.Build.props b/src/libraries/System.DirectoryServices.Protocols/Directory.Build.props
index 7c0fa810dcc..131fb6770cd 100644
--- a/src/libraries/System.DirectoryServices.Protocols/Directory.Build.props
+++ b/src/libraries/System.DirectoryServices.Protocols/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<!-- this assembly is inbox in desktop, do not version it unless you
diff --git a/src/libraries/System.DirectoryServices.Protocols/pkg/System.DirectoryServices.Protocols.pkgproj b/src/libraries/System.DirectoryServices.Protocols/pkg/System.DirectoryServices.Protocols.pkgproj
index 39b7efaf0f8..61bb1491ad9 100644
--- a/src/libraries/System.DirectoryServices.Protocols/pkg/System.DirectoryServices.Protocols.pkgproj
+++ b/src/libraries/System.DirectoryServices.Protocols/pkg/System.DirectoryServices.Protocols.pkgproj
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-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.DirectoryServices.Protocols.csproj">
diff --git a/src/libraries/System.DirectoryServices.Protocols/ref/Configurations.props b/src/libraries/System.DirectoryServices.Protocols/ref/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.DirectoryServices.Protocols/ref/Configurations.props
+++ b/src/libraries/System.DirectoryServices.Protocols/ref/Configurations.props
@@ -1,5 +1,4 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.DirectoryServices.Protocols/src/Configurations.props b/src/libraries/System.DirectoryServices.Protocols/src/Configurations.props
index e3223718322..a04b3b7975b 100644
--- a/src/libraries/System.DirectoryServices.Protocols/src/Configurations.props
+++ b/src/libraries/System.DirectoryServices.Protocols/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<PackageConfigurations>
netstandard;
diff --git a/src/libraries/System.DirectoryServices.Protocols/src/Resources/Strings.resx b/src/libraries/System.DirectoryServices.Protocols/src/Resources/Strings.resx
index a168f202359..d454ecca218 100644
--- a/src/libraries/System.DirectoryServices.Protocols/src/Resources/Strings.resx
+++ b/src/libraries/System.DirectoryServices.Protocols/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/System.DirectoryServices.Protocols/tests/Configurations.props b/src/libraries/System.DirectoryServices.Protocols/tests/Configurations.props
index 808952d28a5..9b3928d692a 100644
--- a/src/libraries/System.DirectoryServices.Protocols/tests/Configurations.props
+++ b/src/libraries/System.DirectoryServices.Protocols/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Windows_NT;
diff --git a/src/libraries/System.DirectoryServices.Protocols/tests/LDAP.Configuration.xml b/src/libraries/System.DirectoryServices.Protocols/tests/LDAP.Configuration.xml
index 2772695598f..868744b4475 100644
--- a/src/libraries/System.DirectoryServices.Protocols/tests/LDAP.Configuration.xml
+++ b/src/libraries/System.DirectoryServices.Protocols/tests/LDAP.Configuration.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="UTF-8"?>
<!--
To enable the tests marked with [ConditionalFact(nameof(IsLdapConfigurationExist))], need to setup LDAP server and provide the needed server info here.
The easiest way to get LDAP server is to download and install OpenDJ https://backstage.forgerock.com/downloads/OpenDJ/Directory%20Services/5.0.0#browse.
diff --git a/src/libraries/System.DirectoryServices/Directory.Build.props b/src/libraries/System.DirectoryServices/Directory.Build.props
index 7c0fa810dcc..131fb6770cd 100644
--- a/src/libraries/System.DirectoryServices/Directory.Build.props
+++ b/src/libraries/System.DirectoryServices/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<!-- this assembly is inbox in desktop, do not version it unless you
diff --git a/src/libraries/System.DirectoryServices/pkg/System.DirectoryServices.pkgproj b/src/libraries/System.DirectoryServices/pkg/System.DirectoryServices.pkgproj
index 19a763e3dfe..a94caab4208 100644
--- a/src/libraries/System.DirectoryServices/pkg/System.DirectoryServices.pkgproj
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.DirectoryServices.csproj">
diff --git a/src/libraries/System.DirectoryServices/ref/Configurations.props b/src/libraries/System.DirectoryServices/ref/Configurations.props
index 77e29493b0e..aee5c900a4d 100644
--- a/src/libraries/System.DirectoryServices/ref/Configurations.props
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diff --git a/src/libraries/System.DirectoryServices/src/Configurations.props b/src/libraries/System.DirectoryServices/src/Configurations.props
index e3223718322..a04b3b7975b 100644
--- a/src/libraries/System.DirectoryServices/src/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<PackageConfigurations>
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diff --git a/src/libraries/System.DirectoryServices/src/Resources/Strings.resx b/src/libraries/System.DirectoryServices/src/Resources/Strings.resx
index aef69894ff3..64f8ba2d1f0 100644
--- a/src/libraries/System.DirectoryServices/src/Resources/Strings.resx
+++ b/src/libraries/System.DirectoryServices/src/Resources/Strings.resx
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-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/System.DirectoryServices/tests/Configurations.props b/src/libraries/System.DirectoryServices/tests/Configurations.props
index 808952d28a5..9b3928d692a 100644
--- a/src/libraries/System.DirectoryServices/tests/Configurations.props
+++ b/src/libraries/System.DirectoryServices/tests/Configurations.props
@@ -1,5 +1,4 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
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<BuildConfigurations>
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diff --git a/src/libraries/System.DirectoryServices/tests/LDAP.Configuration.xml b/src/libraries/System.DirectoryServices/tests/LDAP.Configuration.xml
index 87a4f76c6bc..3fd854f507e 100644
--- a/src/libraries/System.DirectoryServices/tests/LDAP.Configuration.xml
+++ b/src/libraries/System.DirectoryServices/tests/LDAP.Configuration.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="UTF-8"?>
<!--
To enable the tests marked with [ConditionalFact(nameof(IsLdapConfigurationExist))], need to setup LDAP server and provide the needed server info here.
The easiest way to get LDAP server is to download and install OpenDJ https://backstage.forgerock.com/downloads/OpenDJ/Directory%20Services/5.0.0#browse.
diff --git a/src/libraries/System.Drawing.Common/Directory.Build.props b/src/libraries/System.Drawing.Common/Directory.Build.props
index 6c5c34bc9f4..75494287ea7 100644
--- a/src/libraries/System.Drawing.Common/Directory.Build.props
+++ b/src/libraries/System.Drawing.Common/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Drawing.Common/pkg/System.Drawing.Common.pkgproj b/src/libraries/System.Drawing.Common/pkg/System.Drawing.Common.pkgproj
index 8eb982d14e5..d240caf2263 100644
--- a/src/libraries/System.Drawing.Common/pkg/System.Drawing.Common.pkgproj
+++ b/src/libraries/System.Drawing.Common/pkg/System.Drawing.Common.pkgproj
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.Drawing.Common.csproj">
diff --git a/src/libraries/System.Drawing.Common/ref/Configurations.props b/src/libraries/System.Drawing.Common/ref/Configurations.props
index 70c8504051f..f40303ed674 100644
--- a/src/libraries/System.Drawing.Common/ref/Configurations.props
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diff --git a/src/libraries/System.Drawing.Common/src/Configurations.props b/src/libraries/System.Drawing.Common/src/Configurations.props
index 8a223c86a61..df0019d36e7 100644
--- a/src/libraries/System.Drawing.Common/src/Configurations.props
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<PackageConfigurations>
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diff --git a/src/libraries/System.Drawing.Common/src/Resources/Strings.resx b/src/libraries/System.Drawing.Common/src/Resources/Strings.resx
index 176347bf76f..a8db37b9924 100644
--- a/src/libraries/System.Drawing.Common/src/Resources/Strings.resx
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<root>
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Microsoft ResX Schema
diff --git a/src/libraries/System.Drawing.Common/tests/Configurations.props b/src/libraries/System.Drawing.Common/tests/Configurations.props
index 3efbed0bcd1..7538cfb5a86 100644
--- a/src/libraries/System.Drawing.Common/tests/Configurations.props
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<BuildConfigurations>
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diff --git a/src/libraries/System.Drawing.Common/tests/Performance/Configurations.props b/src/libraries/System.Drawing.Common/tests/Performance/Configurations.props
index 78953dfc885..d6385a20201 100644
--- a/src/libraries/System.Drawing.Common/tests/Performance/Configurations.props
+++ b/src/libraries/System.Drawing.Common/tests/Performance/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
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netstandard;
diff --git a/src/libraries/System.Drawing.Primitives/Directory.Build.props b/src/libraries/System.Drawing.Primitives/Directory.Build.props
index 6662cee8d62..19239baac09 100644
--- a/src/libraries/System.Drawing.Primitives/Directory.Build.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.2.0.0</AssemblyVersion>
diff --git a/src/libraries/System.Drawing.Primitives/ref/Configurations.props b/src/libraries/System.Drawing.Primitives/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.Drawing.Primitives/ref/Configurations.props
+++ b/src/libraries/System.Drawing.Primitives/ref/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
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<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Drawing.Primitives/src/Configurations.props b/src/libraries/System.Drawing.Primitives/src/Configurations.props
index bbb5be814ea..095c4309fec 100644
--- a/src/libraries/System.Drawing.Primitives/src/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
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<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.Drawing.Primitives/src/Resources/Strings.resx b/src/libraries/System.Drawing.Primitives/src/Resources/Strings.resx
index 23500f1f69c..a931c14fa42 100644
--- a/src/libraries/System.Drawing.Primitives/src/Resources/Strings.resx
+++ b/src/libraries/System.Drawing.Primitives/src/Resources/Strings.resx
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<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Drawing.Primitives/tests/Configurations.props b/src/libraries/System.Drawing.Primitives/tests/Configurations.props
index 65891797e28..e03f69fa7b7 100644
--- a/src/libraries/System.Drawing.Primitives/tests/Configurations.props
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<BuildConfigurations>
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diff --git a/src/libraries/System.Drawing.Primitives/tests/Performance/Configurations.props b/src/libraries/System.Drawing.Primitives/tests/Performance/Configurations.props
index d3ac8a63c74..a1eadd7648d 100644
--- a/src/libraries/System.Drawing.Primitives/tests/Performance/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
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diff --git a/src/libraries/System.Drawing.Primitives/tests/Performance/System.Drawing.Primitives.PerformanceTests.csproj b/src/libraries/System.Drawing.Primitives/tests/Performance/System.Drawing.Primitives.PerformanceTests.csproj
index 321f9debe1a..2170057cb00 100644
--- a/src/libraries/System.Drawing.Primitives/tests/Performance/System.Drawing.Primitives.PerformanceTests.csproj
+++ b/src/libraries/System.Drawing.Primitives/tests/Performance/System.Drawing.Primitives.PerformanceTests.csproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<ProjectGuid>{1BD5C9BF-D7F2-4249-AA31-43B1850A5DB3}</ProjectGuid>
<Configurations>netcoreapp-Debug;netcoreapp-Release</Configurations>
diff --git a/src/libraries/System.Dynamic.Runtime/Directory.Build.props b/src/libraries/System.Dynamic.Runtime/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Dynamic.Runtime/Directory.Build.props
+++ b/src/libraries/System.Dynamic.Runtime/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Dynamic.Runtime/ref/Configurations.props b/src/libraries/System.Dynamic.Runtime/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.Dynamic.Runtime/ref/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
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<BuildConfigurations>
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diff --git a/src/libraries/System.Dynamic.Runtime/src/Configurations.props b/src/libraries/System.Dynamic.Runtime/src/Configurations.props
index a8910ef718c..86aa0bae312 100644
--- a/src/libraries/System.Dynamic.Runtime/src/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
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<BuildConfigurations>
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diff --git a/src/libraries/System.Dynamic.Runtime/tests/Configurations.props b/src/libraries/System.Dynamic.Runtime/tests/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.Dynamic.Runtime/tests/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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diff --git a/src/libraries/System.Globalization.Calendars/Directory.Build.props b/src/libraries/System.Globalization.Calendars/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Globalization.Calendars/Directory.Build.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Globalization.Calendars/ref/Configurations.props b/src/libraries/System.Globalization.Calendars/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.Globalization.Calendars/ref/Configurations.props
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diff --git a/src/libraries/System.Globalization.Calendars/src/Configurations.props b/src/libraries/System.Globalization.Calendars/src/Configurations.props
index bf5737bf96a..24f90bfd154 100644
--- a/src/libraries/System.Globalization.Calendars/src/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
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diff --git a/src/libraries/System.Globalization.Calendars/tests/CalendarTestWithConfigSwitch/Configurations.props b/src/libraries/System.Globalization.Calendars/tests/CalendarTestWithConfigSwitch/Configurations.props
index 2845c11c541..89d6ac0f025 100644
--- a/src/libraries/System.Globalization.Calendars/tests/CalendarTestWithConfigSwitch/Configurations.props
+++ b/src/libraries/System.Globalization.Calendars/tests/CalendarTestWithConfigSwitch/Configurations.props
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index 166d0a25e06..0025ce6cf71 100644
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index 166d0a25e06..0025ce6cf71 100644
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index c7017558637..acf56fa2750 100644
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index b63c2c5ee82..04ae535c986 100644
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index 78953dfc885..d6385a20201 100644
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index c18b1a3b9dd..e6bf0ee3d80 100644
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index 166d0a25e06..0025ce6cf71 100644
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index cac4c947b8b..dd429856628 100644
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index c7017558637..acf56fa2750 100644
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index c7017558637..acf56fa2750 100644
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index ab12bdb52da..01989533008 100644
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index c7017558637..acf56fa2750 100644
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diff --git a/src/libraries/System.Net.Http.WinHttpHandler/tests/FunctionalTests/Configurations.props b/src/libraries/System.Net.Http.WinHttpHandler/tests/FunctionalTests/Configurations.props
index 249c8c18b46..611acec17f5 100644
--- a/src/libraries/System.Net.Http.WinHttpHandler/tests/FunctionalTests/Configurations.props
+++ b/src/libraries/System.Net.Http.WinHttpHandler/tests/FunctionalTests/Configurations.props
@@ -1,5 +1,4 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
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diff --git a/src/libraries/System.Net.Http.WinHttpHandler/tests/UnitTests/Configurations.props b/src/libraries/System.Net.Http.WinHttpHandler/tests/UnitTests/Configurations.props
index 249c8c18b46..611acec17f5 100644
--- a/src/libraries/System.Net.Http.WinHttpHandler/tests/UnitTests/Configurations.props
+++ b/src/libraries/System.Net.Http.WinHttpHandler/tests/UnitTests/Configurations.props
@@ -1,5 +1,4 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
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<BuildConfigurations>
netstandard-Windows_NT;
diff --git a/src/libraries/System.Net.Http/Directory.Build.props b/src/libraries/System.Net.Http/Directory.Build.props
index 047458dfc57..988124d2d8e 100644
--- a/src/libraries/System.Net.Http/Directory.Build.props
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@@ -1,5 +1,4 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.2.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Net.Http/ref/Configurations.props b/src/libraries/System.Net.Http/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.Net.Http/ref/Configurations.props
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@@ -1,5 +1,4 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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diff --git a/src/libraries/System.Net.Http/src/Configurations.props b/src/libraries/System.Net.Http/src/Configurations.props
index 8c59b78a848..69ca121c25f 100644
--- a/src/libraries/System.Net.Http/src/Configurations.props
+++ b/src/libraries/System.Net.Http/src/Configurations.props
@@ -1,5 +1,4 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
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<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.Net.Http/src/Resources/Strings.resx b/src/libraries/System.Net.Http/src/Resources/Strings.resx
index 090b35f5c02..f7cc449b162 100644
--- a/src/libraries/System.Net.Http/src/Resources/Strings.resx
+++ b/src/libraries/System.Net.Http/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/System.Net.Http/tests/FunctionalTests/Configurations.props b/src/libraries/System.Net.Http/tests/FunctionalTests/Configurations.props
index d4c90c9309f..0743953b2ee 100644
--- a/src/libraries/System.Net.Http/tests/FunctionalTests/Configurations.props
+++ b/src/libraries/System.Net.Http/tests/FunctionalTests/Configurations.props
@@ -1,5 +1,4 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Windows_NT;
diff --git a/src/libraries/System.Net.Http/tests/FunctionalTests/prerequisites/Web.config b/src/libraries/System.Net.Http/tests/FunctionalTests/prerequisites/Web.config
index 6eaf22d986a..93921c70d3b 100644
--- a/src/libraries/System.Net.Http/tests/FunctionalTests/prerequisites/Web.config
+++ b/src/libraries/System.Net.Http/tests/FunctionalTests/prerequisites/Web.config
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<!--
For more information on how to configure your ASP.NET application, please visit
http://go.microsoft.com/fwlink/?LinkId=169433
-->
diff --git a/src/libraries/System.Net.Http/tests/Performance/Configurations.props b/src/libraries/System.Net.Http/tests/Performance/Configurations.props
index 2845c11c541..89d6ac0f025 100644
--- a/src/libraries/System.Net.Http/tests/Performance/Configurations.props
+++ b/src/libraries/System.Net.Http/tests/Performance/Configurations.props
@@ -1,5 +1,4 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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index d3ac8a63c74..a1eadd7648d 100644
--- a/src/libraries/System.Net.Http/tests/UnitTests/Configurations.props
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@@ -1,5 +1,4 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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index b41cdb0fa33..d8cf6babb2a 100644
--- a/src/libraries/System.Net.HttpListener/Directory.Build.props
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@@ -1,5 +1,4 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Net.HttpListener/ref/Configurations.props b/src/libraries/System.Net.HttpListener/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.Net.HttpListener/ref/Configurations.props
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@@ -1,5 +1,4 @@
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index bbb5be814ea..095c4309fec 100644
--- a/src/libraries/System.Net.HttpListener/src/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.Net.HttpListener/src/Resources/Strings.resx b/src/libraries/System.Net.HttpListener/src/Resources/Strings.resx
index 182660572e7..f9747a646f6 100644
--- a/src/libraries/System.Net.HttpListener/src/Resources/Strings.resx
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@@ -1,5 +1,4 @@
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-<root>
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<!--
Microsoft ResX Schema
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index 7817fb09cb1..5f1c80530c6 100644
--- a/src/libraries/System.Net.HttpListener/tests/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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index b41cdb0fa33..d8cf6babb2a 100644
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index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.Net.Mail/ref/Configurations.props
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index 62eb1c47768..421f137c246 100644
--- a/src/libraries/System.Net.Mail/src/Configurations.props
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index c398e42e899..581054d46db 100644
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index b7611d75b72..591dde55dde 100644
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index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Net.NameResolution/Directory.Build.props
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index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.Net.NameResolution/ref/Configurations.props
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index bbb5be814ea..095c4309fec 100644
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index 4fbff57cd6f..2bd0e628018 100644
--- a/src/libraries/System.Net.NameResolution/src/Resources/Strings.resx
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index f333d20c1aa..1b6509ccdf1 100644
--- a/src/libraries/System.Net.NameResolution/tests/FunctionalTests/Configurations.props
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+<Project DefaultTargets="Build">
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diff --git a/src/libraries/System.Net.NameResolution/tests/PalTests/Configurations.props b/src/libraries/System.Net.NameResolution/tests/PalTests/Configurations.props
index 1040c9ba37f..ad8296d246d 100644
--- a/src/libraries/System.Net.NameResolution/tests/PalTests/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Windows_NT;
diff --git a/src/libraries/System.Net.NameResolution/tests/UnitTests/Configurations.props b/src/libraries/System.Net.NameResolution/tests/UnitTests/Configurations.props
index 1040c9ba37f..ad8296d246d 100644
--- a/src/libraries/System.Net.NameResolution/tests/UnitTests/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
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diff --git a/src/libraries/System.Net.NetworkInformation/Directory.Build.props b/src/libraries/System.Net.NetworkInformation/Directory.Build.props
index 047458dfc57..988124d2d8e 100644
--- a/src/libraries/System.Net.NetworkInformation/Directory.Build.props
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<PropertyGroup>
<AssemblyVersion>4.2.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Net.NetworkInformation/ref/Configurations.props b/src/libraries/System.Net.NetworkInformation/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.Net.NetworkInformation/ref/Configurations.props
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<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Net.NetworkInformation/src/Configurations.props b/src/libraries/System.Net.NetworkInformation/src/Configurations.props
index 92e64ebc19b..e30f21960f5 100644
--- a/src/libraries/System.Net.NetworkInformation/src/Configurations.props
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+<Project>
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<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.Net.NetworkInformation/src/Resources/Strings.resx b/src/libraries/System.Net.NetworkInformation/src/Resources/Strings.resx
index d6ec2226ede..4c845467131 100644
--- a/src/libraries/System.Net.NetworkInformation/src/Resources/Strings.resx
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diff --git a/src/libraries/System.Net.NetworkInformation/tests/FunctionalTests/Configurations.props b/src/libraries/System.Net.NetworkInformation/tests/FunctionalTests/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Net.NetworkInformation/tests/FunctionalTests/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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diff --git a/src/libraries/System.Net.Ping/Directory.Build.props b/src/libraries/System.Net.Ping/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Net.Ping/Directory.Build.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
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diff --git a/src/libraries/System.Net.Ping/ref/Configurations.props b/src/libraries/System.Net.Ping/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.Net.Ping/ref/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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diff --git a/src/libraries/System.Net.Ping/src/Configurations.props b/src/libraries/System.Net.Ping/src/Configurations.props
index 62eb1c47768..421f137c246 100644
--- a/src/libraries/System.Net.Ping/src/Configurations.props
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diff --git a/src/libraries/System.Net.Ping/src/Resources/Strings.resx b/src/libraries/System.Net.Ping/src/Resources/Strings.resx
index 6928bdc8b7e..74b274496a4 100644
--- a/src/libraries/System.Net.Ping/src/Resources/Strings.resx
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@@ -1,5 +1,4 @@
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diff --git a/src/libraries/System.Net.Ping/tests/FunctionalTests/Configurations.props b/src/libraries/System.Net.Ping/tests/FunctionalTests/Configurations.props
index cfc57211a43..2b7db4cef13 100644
--- a/src/libraries/System.Net.Ping/tests/FunctionalTests/Configurations.props
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index 166d0a25e06..0025ce6cf71 100644
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index c7017558637..acf56fa2750 100644
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index 166d0a25e06..0025ce6cf71 100644
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index c7017558637..acf56fa2750 100644
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index c7017558637..acf56fa2750 100644
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index c7017558637..acf56fa2750 100644
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index a8910ef718c..86aa0bae312 100644
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index 3010b5400fa..cab58a4e787 100644
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index c398e42e899..ff0d415e459 100644
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index b41cdb0fa33..d8cf6babb2a 100644
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index c7017558637..acf56fa2750 100644
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index c398e42e899..ff0d415e459 100644
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index 166d0a25e06..0025ce6cf71 100644
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index c7017558637..acf56fa2750 100644
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index eddfd3a9acc..66667bf08c3 100644
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index 166d0a25e06..0025ce6cf71 100644
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index c7017558637..acf56fa2750 100644
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index 0b86c081288..a9f82800599 100644
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index 8b803e0772f..f5d3d45ffbf 100644
--- a/src/libraries/System.Numerics.Vectors/tests/Performance/Configurations.props
+++ b/src/libraries/System.Numerics.Vectors/tests/Performance/Configurations.props
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diff --git a/src/libraries/System.ObjectModel/Directory.Build.props b/src/libraries/System.ObjectModel/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.ObjectModel/Directory.Build.props
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@@ -1,5 +1,4 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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diff --git a/src/libraries/System.ObjectModel/ref/Configurations.props b/src/libraries/System.ObjectModel/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.ObjectModel/ref/Configurations.props
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diff --git a/src/libraries/System.ObjectModel/src/Configurations.props b/src/libraries/System.ObjectModel/src/Configurations.props
index a8910ef718c..86aa0bae312 100644
--- a/src/libraries/System.ObjectModel/src/Configurations.props
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diff --git a/src/libraries/System.ObjectModel/src/Resources/Strings.resx b/src/libraries/System.ObjectModel/src/Resources/Strings.resx
index ce72a8588dc..19a24c76d32 100644
--- a/src/libraries/System.ObjectModel/src/Resources/Strings.resx
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diff --git a/src/libraries/System.ObjectModel/tests/Configurations.props b/src/libraries/System.ObjectModel/tests/Configurations.props
index 77a4b65bc94..2bc19ff4170 100644
--- a/src/libraries/System.ObjectModel/tests/Configurations.props
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index 776b52317d9..76b0f99c587 100644
--- a/src/libraries/System.Private.DataContractSerialization/Directory.Build.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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diff --git a/src/libraries/System.Private.DataContractSerialization/src/Configurations.props b/src/libraries/System.Private.DataContractSerialization/src/Configurations.props
index 0383eafcba1..c5bd911e4d6 100644
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index 8a8ea8fb4d6..bbd28b36583 100644
--- a/src/libraries/System.Private.DataContractSerialization/src/Resources/Strings.resx
+++ b/src/libraries/System.Private.DataContractSerialization/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
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diff --git a/src/libraries/System.Private.Reflection.Metadata.Ecma335/Directory.Build.props b/src/libraries/System.Private.Reflection.Metadata.Ecma335/Directory.Build.props
index b9ac4acd233..04cb73b1272 100644
--- a/src/libraries/System.Private.Reflection.Metadata.Ecma335/Directory.Build.props
+++ b/src/libraries/System.Private.Reflection.Metadata.Ecma335/Directory.Build.props
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index e6781ac0906..4e0b55a64cc 100644
--- a/src/libraries/System.Private.Reflection.Metadata.Ecma335/src/Configurations.props
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diff --git a/src/libraries/System.Private.Reflection.Metadata.Ecma335/src/Resources/Strings.resx b/src/libraries/System.Private.Reflection.Metadata.Ecma335/src/Resources/Strings.resx
index ef9fd3464a5..5c5be4ab8ae 100644
--- a/src/libraries/System.Private.Reflection.Metadata.Ecma335/src/Resources/Strings.resx
+++ b/src/libraries/System.Private.Reflection.Metadata.Ecma335/src/Resources/Strings.resx
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diff --git a/src/libraries/System.Private.Uri/Directory.Build.props b/src/libraries/System.Private.Uri/Directory.Build.props
index 6c73013267d..1c68896a314 100644
--- a/src/libraries/System.Private.Uri/Directory.Build.props
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index 83ff3176788..bb83bc28c24 100644
--- a/src/libraries/System.Private.Uri/src/Configurations.props
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index d7d0c4d4981..655f2820692 100644
--- a/src/libraries/System.Private.Uri/src/Resources/Strings.resx
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index 78953dfc885..d6385a20201 100644
--- a/src/libraries/System.Private.Uri/tests/ExtendedFunctionalTests/Configurations.props
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index 78953dfc885..d6385a20201 100644
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index d3ac8a63c74..a1eadd7648d 100644
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index fc108ac22aa..f3633e44ac9 100644
--- a/src/libraries/System.Private.Xml.Linq/Directory.Build.props
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diff --git a/src/libraries/System.Private.Xml.Linq/src/Configurations.props b/src/libraries/System.Private.Xml.Linq/src/Configurations.props
index 7bdbc4586f7..95579245fb2 100644
--- a/src/libraries/System.Private.Xml.Linq/src/Configurations.props
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diff --git a/src/libraries/System.Private.Xml.Linq/src/Resources/Strings.resx b/src/libraries/System.Private.Xml.Linq/src/Resources/Strings.resx
index e0aefb9ab0e..6b427d8b7a9 100644
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diff --git a/src/libraries/System.Private.Xml.Linq/tests/XDocument.Common/Configurations.props b/src/libraries/System.Private.Xml.Linq/tests/XDocument.Common/Configurations.props
index c398e42e899..581054d46db 100644
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diff --git a/src/libraries/System.Private.Xml.Linq/tests/XDocument.Test.ModuleCore/Configurations.props b/src/libraries/System.Private.Xml.Linq/tests/XDocument.Test.ModuleCore/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml.Linq/tests/XDocument.Test.ModuleCore/Configurations.props
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diff --git a/src/libraries/System.Private.Xml.Linq/tests/events/Configurations.props b/src/libraries/System.Private.Xml.Linq/tests/events/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml.Linq/tests/events/Configurations.props
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diff --git a/src/libraries/System.Private.Xml.Linq/tests/misc/Configurations.props b/src/libraries/System.Private.Xml.Linq/tests/misc/Configurations.props
index 81ec505f6bf..29dd700cc3a 100644
--- a/src/libraries/System.Private.Xml.Linq/tests/misc/Configurations.props
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diff --git a/src/libraries/System.Private.Xml.Linq/tests/xNodeBuilder/Configurations.props b/src/libraries/System.Private.Xml.Linq/tests/xNodeBuilder/Configurations.props
index 81ec505f6bf..29dd700cc3a 100644
--- a/src/libraries/System.Private.Xml.Linq/tests/xNodeBuilder/Configurations.props
+++ b/src/libraries/System.Private.Xml.Linq/tests/xNodeBuilder/Configurations.props
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diff --git a/src/libraries/System.Private.Xml/Directory.Build.props b/src/libraries/System.Private.Xml/Directory.Build.props
index fc108ac22aa..f3633e44ac9 100644
--- a/src/libraries/System.Private.Xml/Directory.Build.props
+++ b/src/libraries/System.Private.Xml/Directory.Build.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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diff --git a/src/libraries/System.Private.Xml/src/Configurations.props b/src/libraries/System.Private.Xml/src/Configurations.props
index afd7b401c08..5d1182962c9 100644
--- a/src/libraries/System.Private.Xml/src/Configurations.props
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diff --git a/src/libraries/System.Private.Xml/src/Resources/Strings.resx b/src/libraries/System.Private.Xml/src/Resources/Strings.resx
index f9e414974f6..944e6f816e1 100644
--- a/src/libraries/System.Private.Xml/src/Resources/Strings.resx
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+<root>
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Microsoft ResX Schema
diff --git a/src/libraries/System.Private.Xml/tests/Misc/Configurations.props b/src/libraries/System.Private.Xml/tests/Misc/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/Misc/Configurations.props
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diff --git a/src/libraries/System.Private.Xml/tests/Readers/CharCheckingReader/Configurations.props b/src/libraries/System.Private.Xml/tests/Readers/CharCheckingReader/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/Readers/CharCheckingReader/Configurations.props
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diff --git a/src/libraries/System.Private.Xml/tests/Readers/CustomReader/Configurations.props b/src/libraries/System.Private.Xml/tests/Readers/CustomReader/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/Readers/CustomReader/Configurations.props
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diff --git a/src/libraries/System.Private.Xml/tests/Readers/FactoryReader/Configurations.props b/src/libraries/System.Private.Xml/tests/Readers/FactoryReader/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/Readers/FactoryReader/Configurations.props
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diff --git a/src/libraries/System.Private.Xml/tests/Readers/NameTable/Configurations.props b/src/libraries/System.Private.Xml/tests/Readers/NameTable/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/Readers/NameTable/Configurations.props
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diff --git a/src/libraries/System.Private.Xml/tests/Readers/ReaderSettings/Configurations.props b/src/libraries/System.Private.Xml/tests/Readers/ReaderSettings/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/Readers/ReaderSettings/Configurations.props
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diff --git a/src/libraries/System.Private.Xml/tests/Readers/SubtreeReader/Configurations.props b/src/libraries/System.Private.Xml/tests/Readers/SubtreeReader/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/Readers/SubtreeReader/Configurations.props
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diff --git a/src/libraries/System.Private.Xml/tests/Readers/WrappedReader/Configurations.props b/src/libraries/System.Private.Xml/tests/Readers/WrappedReader/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/Readers/WrappedReader/Configurations.props
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netstandard;
diff --git a/src/libraries/System.Private.Xml/tests/Writers/RwFactory/Configurations.props b/src/libraries/System.Private.Xml/tests/Writers/RwFactory/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/Writers/RwFactory/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/Writers/RwFactory/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Private.Xml/tests/Writers/XmlWriterApi/Configurations.props b/src/libraries/System.Private.Xml/tests/Writers/XmlWriterApi/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/Writers/XmlWriterApi/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/Writers/XmlWriterApi/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Private.Xml/tests/XPath/XPathDocument/Configurations.props b/src/libraries/System.Private.Xml/tests/XPath/XPathDocument/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/XPath/XPathDocument/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/XPath/XPathDocument/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Private.Xml/tests/XPath/XmlDocument/Configurations.props b/src/libraries/System.Private.Xml/tests/XPath/XmlDocument/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/XPath/XmlDocument/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/XPath/XmlDocument/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Private.Xml/tests/XmlConvert/Configurations.props b/src/libraries/System.Private.Xml/tests/XmlConvert/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/XmlConvert/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/XmlConvert/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Private.Xml/tests/XmlDocument/Configurations.props b/src/libraries/System.Private.Xml/tests/XmlDocument/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/XmlDocument/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/XmlDocument/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Private.Xml/tests/XmlDocument/Performance/Configurations.props b/src/libraries/System.Private.Xml/tests/XmlDocument/Performance/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/XmlDocument/Performance/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/XmlDocument/Performance/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Private.Xml/tests/XmlNodeReader/System.Xml.XmlNodeReader.Tests/Configurations.props b/src/libraries/System.Private.Xml/tests/XmlNodeReader/System.Xml.XmlNodeReader.Tests/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/XmlNodeReader/System.Xml.XmlNodeReader.Tests/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/XmlNodeReader/System.Xml.XmlNodeReader.Tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Private.Xml/tests/XmlNodeReader/System.Xml.XmlNodeReader.Tests/System.Xml.XmlNodeReader.Tests.csproj b/src/libraries/System.Private.Xml/tests/XmlNodeReader/System.Xml.XmlNodeReader.Tests/System.Xml.XmlNodeReader.Tests.csproj
index 934816b20e6..46217ffee7d 100644
--- a/src/libraries/System.Private.Xml/tests/XmlNodeReader/System.Xml.XmlNodeReader.Tests/System.Xml.XmlNodeReader.Tests.csproj
+++ b/src/libraries/System.Private.Xml/tests/XmlNodeReader/System.Xml.XmlNodeReader.Tests/System.Xml.XmlNodeReader.Tests.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
+<Project Sdk="Microsoft.NET.Sdk">
<Import Project="$(CommonTestPath)\Tests.props" />
<PropertyGroup>
<ProjectGuid>{6C6F323D-054E-4723-9DEA-1C5E1E45DF88}</ProjectGuid>
diff --git a/src/libraries/System.Private.Xml/tests/XmlReader/ReadContentAs/Configurations.props b/src/libraries/System.Private.Xml/tests/XmlReader/ReadContentAs/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/XmlReader/ReadContentAs/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/XmlReader/ReadContentAs/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Private.Xml/tests/XmlReader/Tests/Configurations.props b/src/libraries/System.Private.Xml/tests/XmlReader/Tests/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/XmlReader/Tests/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/XmlReader/Tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Private.Xml/tests/XmlReader/XmlResolver/Configurations.props b/src/libraries/System.Private.Xml/tests/XmlReader/XmlResolver/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/XmlReader/XmlResolver/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/XmlReader/XmlResolver/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Private.Xml/tests/XmlReaderLib/Configurations.props b/src/libraries/System.Private.Xml/tests/XmlReaderLib/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/XmlReaderLib/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/XmlReaderLib/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Private.Xml/tests/XmlResolver/System.Xml.XmlResolver.Tests/Configurations.props b/src/libraries/System.Private.Xml/tests/XmlResolver/System.Xml.XmlResolver.Tests/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/XmlResolver/System.Xml.XmlResolver.Tests/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/XmlResolver/System.Xml.XmlResolver.Tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Private.Xml/tests/XmlResolver/System.Xml.XmlResolver.Tests/System.Xml.XmlResolver.Tests.csproj b/src/libraries/System.Private.Xml/tests/XmlResolver/System.Xml.XmlResolver.Tests/System.Xml.XmlResolver.Tests.csproj
index ab9d63c02e2..442339ebd95 100644
--- a/src/libraries/System.Private.Xml/tests/XmlResolver/System.Xml.XmlResolver.Tests/System.Xml.XmlResolver.Tests.csproj
+++ b/src/libraries/System.Private.Xml/tests/XmlResolver/System.Xml.XmlResolver.Tests/System.Xml.XmlResolver.Tests.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
+<Project Sdk="Microsoft.NET.Sdk">
<Import Project="$(CommonTestPath)\Tests.props" />
<PropertyGroup>
<ProjectGuid>{F011A6F5-BA48-4F8D-A20F-79CCE01CDE0E}</ProjectGuid>
diff --git a/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/105897_a.xsd b/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/105897_a.xsd
index 7dffeaf9a13..acf1ad5f9ff 100644
--- a/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/105897_a.xsd
+++ b/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/105897_a.xsd
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="UTF-8"?>
<xs:schema targetNamespace="http://schemas.microsoft.com/net/2003/06/policy" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:S="http://www.w3.org/2002/12/soap-envelope" xmlns:tns="http://schemas.microsoft.com/net/2003/06/policy" elementFormDefault="qualified" attributeFormDefault="unqualified" blockDefault="#all">
<xs:import namespace="http://www.w3.org/2002/12/soap-envelope"/>
<xs:element name="SelectedPolicies">
diff --git a/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/AllowXmlAttributes/custom1.xsd b/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/AllowXmlAttributes/custom1.xsd
index 163cffd7955..2c0de3b630e 100644
--- a/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/AllowXmlAttributes/custom1.xsd
+++ b/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/AllowXmlAttributes/custom1.xsd
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="UTF-8"?>
<xs:schema targetNamespace="http://www.w3.org/XML/1998/namespace" xmlns:xs="http://www.w3.org/2001/XMLSchema" xml:lang="en">
<!-- This schema just has two new attributes: foo and bar -->
<xs:attribute name="lang" type="xs:language"/>
diff --git a/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/AllowXmlAttributes/custom2.xsd b/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/AllowXmlAttributes/custom2.xsd
index bbfcbe601c2..9c1e79572f9 100644
--- a/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/AllowXmlAttributes/custom2.xsd
+++ b/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/AllowXmlAttributes/custom2.xsd
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="UTF-8"?>
<xs:schema targetNamespace="http://www.w3.org/XML/1998/namespace" xmlns:xs="http://www.w3.org/2001/XMLSchema" xml:lang="en">
<!-- This schema just has two new attributes: foo and bar -->
<xs:import schemaLocation="v2.xsd"/>
diff --git a/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/XmlSchemaValidatorAPI/200DefAttributes.xsd b/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/XmlSchemaValidatorAPI/200DefAttributes.xsd
index 4a06b4bc9ee..5285e328ec3 100644
--- a/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/XmlSchemaValidatorAPI/200DefAttributes.xsd
+++ b/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/XmlSchemaValidatorAPI/200DefAttributes.xsd
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="StressElement">
<xs:complexType>
<xs:attribute name="attr0" type="xs:int" default="0" />
diff --git a/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/bug435368.xml b/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/bug435368.xml
index 2edea40dd2f..f8860ae2133 100644
--- a/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/bug435368.xml
+++ b/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/bug435368.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<root xml:lang="en-US">
<sg1></sg1>
<a></a>
diff --git a/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/bug511217.xml b/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/bug511217.xml
index 7274b6c8fbf..21f7fc06be8 100644
--- a/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/bug511217.xml
+++ b/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/bug511217.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<test xsi:noNamespaceSchemaLocation="XMLSchema1.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+<test xsi:noNamespaceSchemaLocation="XMLSchema1.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<listitem>
<item>
item
diff --git a/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/bug511217.xsd b/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/bug511217.xsd
index 02bc179e48c..7d75e389624 100644
--- a/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/bug511217.xsd
+++ b/src/libraries/System.Private.Xml/tests/XmlSchema/TestFiles/TestData/bug511217.xsd
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:simpleType name="boolean">
<xs:restriction base="xs:boolean"/>
diff --git a/src/libraries/System.Private.Xml/tests/XmlSchema/XmlSchemaSet/Configurations.props b/src/libraries/System.Private.Xml/tests/XmlSchema/XmlSchemaSet/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/XmlSchema/XmlSchemaSet/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/XmlSchema/XmlSchemaSet/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Private.Xml/tests/XmlSchema/XmlSchemaValidatorApi/Configurations.props b/src/libraries/System.Private.Xml/tests/XmlSchema/XmlSchemaValidatorApi/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/XmlSchema/XmlSchemaValidatorApi/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/XmlSchema/XmlSchemaValidatorApi/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Private.Xml/tests/XmlSerializer/Configurations.props b/src/libraries/System.Private.Xml/tests/XmlSerializer/Configurations.props
index bd930d0f901..2260378844b 100644
--- a/src/libraries/System.Private.Xml/tests/XmlSerializer/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/XmlSerializer/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Private.Xml/tests/XmlSerializer/Performance/Configurations.props b/src/libraries/System.Private.Xml/tests/XmlSerializer/Performance/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/XmlSerializer/Performance/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/XmlSerializer/Performance/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Private.Xml/tests/XmlSerializer/ReflectionOnly/Configurations.props b/src/libraries/System.Private.Xml/tests/XmlSerializer/ReflectionOnly/Configurations.props
index c2acc149511..6f4a060d826 100644
--- a/src/libraries/System.Private.Xml/tests/XmlSerializer/ReflectionOnly/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/XmlSerializer/ReflectionOnly/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Private.Xml/tests/XmlWriter/Configurations.props b/src/libraries/System.Private.Xml/tests/XmlWriter/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/XmlWriter/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/XmlWriter/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/Bug78587a.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/Bug78587a.txt
index 8f732f9247f..2025f176662 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/Bug78587a.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/Bug78587a.txt
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<out xmlns:id="id" xmlns:cap="capitalizer">
<id>first</id>
<ID>FIRST</ID>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/Bug78587b.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/Bug78587b.txt
index fd9a55e2d8c..06147a415a9 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/Bug78587b.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/Bug78587b.txt
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<out xmlns:id="id" xmlns:cap="capitalizer">
<id>second</id>
<ID>SECOND</ID>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/MyObject_Arguments.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/MyObject_Arguments.txt
index fd0b40d0019..beedc19aaf3 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/MyObject_Arguments.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/MyObject_Arguments.txt
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<result xmlns:myObj="urn:my-object">
<string>Received a string with value: Hello</string>
<double>Received a double with value 3.14</double>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/MyObject_KeepingState.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/MyObject_KeepingState.txt
index 972abf919f6..a8443ff050c 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/MyObject_KeepingState.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/MyObject_KeepingState.txt
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<result xmlns:myObj="urn:my-object">
<A>27</A>
<B>23</B>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/MyObject_Recursion.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/MyObject_Recursion.txt
index 84bfe6b96ba..41a12f6883f 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/MyObject_Recursion.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/MyObject_Recursion.txt
@@ -1,2 +1 @@
-<?xml version="1.0" encoding="utf-8"?>
<result xmlns:myObj="urn:my-object">Recursive Function Returning the factorial of five:120</result> \ No newline at end of file
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/apply-templates.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/apply-templates.txt
index 1f0131e79c6..d20a30281df 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/apply-templates.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/apply-templates.txt
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<out>
<title>XML Primer</title>
<title>XSLT Basics</title>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/copy-of.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/copy-of.txt
index 1f0131e79c6..d20a30281df 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/copy-of.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/copy-of.txt
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<out>
<title>XML Primer</title>
<title>XSLT Basics</title>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/for-each.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/for-each.txt
index 1f0131e79c6..d20a30281df 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/for-each.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/for-each.txt
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<out>
<title>XML Primer</title>
<title>XSLT Basics</title>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/myObjectDef.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/myObjectDef.txt
index 1d34297e32f..dbbfbf819b3 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/myObjectDef.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/myObjectDef.txt
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<result xmlns:myObj="urn:my-object">
<func1>1.Test1</func1>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/myObjectLongNS.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/myObjectLongNS.txt
index 6337c77fb48..dbd01f3bcf8 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/myObjectLongNS.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/myObjectLongNS.txt
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<result xmlns:myObj="http://www.microsoft.com/this/is/a/very/long/namespace/uri/to/do/the/api/testing/for/xslt/0123456789/0123456789/0123456789/0123456789/0123456789/0123456789/0123456789/0123456789/0123456789/0123456789/0123456789/0123456789/0123456789/0123456789/0123456789/0123456789/0123456789/0123456789/">
<func1>1.Test1</func1>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/param.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/param.txt
index 1f0131e79c6..d20a30281df 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/param.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/param.txt
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<out>
<title>XML Primer</title>
<title>XSLT Basics</title>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/param2.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/param2.txt
index 9bc79f99f61..d61e7bae156 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/param2.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/param2.txt
@@ -1,2 +1 @@
-<?xml version="1.0" encoding="utf-8"?>
<out>1</out>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/param3.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/param3.txt
index cbd799b2f16..476c5844995 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/param3.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/param3.txt
@@ -1,2 +1 @@
-<?xml version="1.0" encoding="utf-8"?>
<out>2</out>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/param4.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/param4.txt
index cbd799b2f16..476c5844995 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/param4.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/param4.txt
@@ -1,2 +1 @@
-<?xml version="1.0" encoding="utf-8"?>
<out>2</out>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/sort.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/sort.txt
index 1f0131e79c6..d20a30281df 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/sort.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/sort.txt
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<out>
<title>XML Primer</title>
<title>XSLT Basics</title>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/value-of.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/value-of.txt
index ee683d1b59a..4310849a8f2 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/value-of.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/value-of.txt
@@ -1,2 +1 @@
-<?xml version="1.0" encoding="utf-8"?>
<title>XML Primer</title> \ No newline at end of file
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/variable.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/variable.txt
index 1f0131e79c6..d20a30281df 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/variable.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/variable.txt
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<out>
<title>XML Primer</title>
<title>XSLT Basics</title>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/variable2.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/variable2.txt
index 9bc79f99f61..d61e7bae156 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/variable2.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/variable2.txt
@@ -1,2 +1 @@
-<?xml version="1.0" encoding="utf-8"?>
<out>1</out>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/variable3.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/variable3.txt
index cbd799b2f16..476c5844995 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/variable3.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/variable3.txt
@@ -1,2 +1 @@
-<?xml version="1.0" encoding="utf-8"?>
<out>2</out>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/variable4.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/variable4.txt
index cbd799b2f16..476c5844995 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/variable4.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/variable4.txt
@@ -1,2 +1 @@
-<?xml version="1.0" encoding="utf-8"?>
<out>2</out>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/with-param.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/with-param.txt
index 1f0131e79c6..d20a30281df 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/with-param.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/baseline/with-param.txt
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<out>
<title>XML Primer</title>
<title>XSLT Basics</title>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/bug482971.xsl b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/bug482971.xsl
index a75a597ca4b..c92030e728b 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/bug482971.xsl
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltApiV2/bug482971.xsl
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" encoding="Shift_JIS" indent="yes" />
<xsl:template match="/">
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/datetime-source.xml b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/datetime-source.xml
index c64873f9d2a..22c8e551d21 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/datetime-source.xml
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/datetime-source.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<data>
<date>2001-07-04T12:08:56+02:00</date>
<date2>2001-09-12T07:59:02+02:00</date2>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/datetime-source1.xml b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/datetime-source1.xml
index ba509bafa93..7f458786630 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/datetime-source1.xml
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/datetime-source1.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<data>
<timespan>P1M</timespan>
<timespan>P3M</timespan>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/math-source1.xml b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/math-source1.xml
index c1e4e83adc8..1df608dcd18 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/math-source1.xml
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/math-source1.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<data>
<values>
<value>7</value>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/regex-source.xml b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/regex-source.xml
index b4a37fa19a1..1fc24c56256 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/regex-source.xml
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/regex-source.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<data>
<email>
<valid>johndoe@microsoft.com</valid>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/regex-source1.xml b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/regex-source1.xml
index 54d6f712124..f83fcfb0464 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/regex-source1.xml
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/regex-source1.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<data>
<input>The quick brown fox jumps over a lazy dog.</input>
</data>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/sets-source.xml b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/sets-source.xml
index 96eeaece572..c3c7061f1f9 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/sets-source.xml
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/sets-source.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<data>
<set>
<foo bar="baz">1</foo>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/sets-source1.xml b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/sets-source1.xml
index 69aba23177e..1c2b18049bc 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/sets-source1.xml
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/sets-source1.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<data>
<doc>
<city name="Paris" country="France"/>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/string-source.xml b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/string-source.xml
index e7a51ee59c8..28fcc8d7104 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/string-source.xml
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/string-source.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<data>
+<data>
<email>john@doe.com</email>
<name>Danny</name>
<uri>http://www.example.com/my résumé.html</uri>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/string-source1.xml b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/string-source1.xml
index 0f845512fab..2ef16b94be7 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/string-source1.xml
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/EXslt/string-source1.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<data>
+<data>
<input>The Quick Brown Fox Jumps Over a Lazy Dog.</input>
<input-ru>Если ты можешь это прочитать, ты наверное немного знаешь русский язык.</input-ru>
</data>
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/Schematron/TestSchema.xml b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/Schematron/TestSchema.xml
index 925e436199c..3b15549767d 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/Schematron/TestSchema.xml
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/XsltScenarios/Schematron/TestSchema.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="UTF-8"?>
<sch:schema xmlns:sch="http://www.ascc.net/xml/schematron">
<sch:ns uri="http://www.topologi.com/example" prefix="ex"/>
<sch:pattern name="Check structure">
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/xsltc/baseline/cnt10.txt b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/xsltc/baseline/cnt10.txt
index cdd5f01c1f9..57d923614b1 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/xsltc/baseline/cnt10.txt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/TestFiles/TestData/xsltc/baseline/cnt10.txt
@@ -1,3 +1,2 @@
-<?xml version="1.0" encoding="utf-8"?>
DIFFERENT
Hello, world! \ No newline at end of file
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/XslCompiledTransformApi/Configurations.props b/src/libraries/System.Private.Xml/tests/Xslt/XslCompiledTransformApi/Configurations.props
index b40e1de4220..d8630445849 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/XslCompiledTransformApi/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/Xslt/XslCompiledTransformApi/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netfx;
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/XslTransformApi/Configurations.props b/src/libraries/System.Private.Xml/tests/Xslt/XslTransformApi/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/XslTransformApi/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/Xslt/XslTransformApi/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/XsltCompiler/Configurations.props b/src/libraries/System.Private.Xml/tests/Xslt/XsltCompiler/Configurations.props
index 2845c11c541..89d6ac0f025 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/XsltCompiler/Configurations.props
+++ b/src/libraries/System.Private.Xml/tests/Xslt/XsltCompiler/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/XsltCompiler/Identity.xslt b/src/libraries/System.Private.Xml/tests/Xslt/XsltCompiler/Identity.xslt
index 005048ba120..afec73bebf0 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/XsltCompiler/Identity.xslt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/XsltCompiler/Identity.xslt
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-
+
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:msxsl="urn:schemas-microsoft-com:xslt" exclude-result-prefixes="msxsl">
<xsl:output method="xml" indent="no" />
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/XsltCompiler/IdentityTransform.xslt b/src/libraries/System.Private.Xml/tests/Xslt/XsltCompiler/IdentityTransform.xslt
index 005048ba120..afec73bebf0 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/XsltCompiler/IdentityTransform.xslt
+++ b/src/libraries/System.Private.Xml/tests/Xslt/XsltCompiler/IdentityTransform.xslt
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-
+
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:msxsl="urn:schemas-microsoft-com:xslt" exclude-result-prefixes="msxsl">
<xsl:output method="xml" indent="no" />
diff --git a/src/libraries/System.Private.Xml/tests/Xslt/XsltCompiler/TestStylesheet.xslt b/src/libraries/System.Private.Xml/tests/Xslt/XsltCompiler/TestStylesheet.xslt
index c6207f4423d..4f2ead16153 100644
--- a/src/libraries/System.Private.Xml/tests/Xslt/XsltCompiler/TestStylesheet.xslt
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<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
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diff --git a/src/libraries/System.Reflection.Context/Directory.Build.props b/src/libraries/System.Reflection.Context/Directory.Build.props
index 926696157b0..14f75a50fdb 100644
--- a/src/libraries/System.Reflection.Context/Directory.Build.props
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<PropertyGroup>
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diff --git a/src/libraries/System.Reflection.Context/pkg/System.Reflection.Context.pkgproj b/src/libraries/System.Reflection.Context/pkg/System.Reflection.Context.pkgproj
index 27308bbcab7..66dc14a19da 100644
--- a/src/libraries/System.Reflection.Context/pkg/System.Reflection.Context.pkgproj
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<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
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index a66f1edba4a..2b37a93d1ab 100644
--- a/src/libraries/System.Reflection.Context/ref/Configurations.props
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index 0b789f959ba..090e9478a0f 100644
--- a/src/libraries/System.Reflection.Context/src/Configurations.props
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index 27ab6ebb0c8..faa2e9cbb08 100644
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diff --git a/src/libraries/System.Reflection.Context/tests/Configurations.props b/src/libraries/System.Reflection.Context/tests/Configurations.props
index 5e52d60de3c..1a037adc3e7 100644
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index 7b1976b912e..5848e04425f 100644
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diff --git a/src/libraries/System.Reflection.DispatchProxy/Directory.Build.props b/src/libraries/System.Reflection.DispatchProxy/Directory.Build.props
index 550855ef823..1d44f78cd37 100644
--- a/src/libraries/System.Reflection.DispatchProxy/Directory.Build.props
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@@ -1,5 +1,4 @@
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index 7f87457bf14..d45fd2ae9ae 100644
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index f6dd5314321..e963a92f1ba 100644
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index 768ff70e474..e85d2e0e20a 100644
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index 6817eaa4691..207ef13683a 100644
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index 77a4b65bc94..2bc19ff4170 100644
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index b6f0e05d2fc..052e35e97a1 100644
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index 2eb107c4938..aeccaf72695 100644
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index 4c23b5322bf..c30e40e5072 100644
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index 2845c11c541..55d2de1d23f 100644
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index b6f0e05d2fc..052e35e97a1 100644
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index 478b77449c7..797a7ab3133 100644
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index 2eb107c4938..aeccaf72695 100644
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index 2845c11c541..55d2de1d23f 100644
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<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
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index 166d0a25e06..0025ce6cf71 100644
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index e9089f9d85c..6cc75ebaa57 100644
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index 879ad7ced27..2ae96123ce8 100644
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diff --git a/src/libraries/System.Reflection.Metadata/tests/Configurations.props b/src/libraries/System.Reflection.Metadata/tests/Configurations.props
index dd9ac0654d1..7c754dfedf2 100644
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index 6be79232c52..aa74bf5413d 100644
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index 11025472d9a..850a3f2e0a8 100644
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index c398e42e899..ff0d415e459 100644
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index 271a4be4c93..38a2a87a19e 100644
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index cb6d6317977..6e447252b30 100644
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Microsoft ResX Schema
diff --git a/src/libraries/System.Reflection.MetadataLoadContext/src/System.Reflection.MetadataLoadContext.csproj b/src/libraries/System.Reflection.MetadataLoadContext/src/System.Reflection.MetadataLoadContext.csproj
index b378e4c3172..4dd8579990d 100644
--- a/src/libraries/System.Reflection.MetadataLoadContext/src/System.Reflection.MetadataLoadContext.csproj
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index 77a4b65bc94..2bc19ff4170 100644
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index 166d0a25e06..0025ce6cf71 100644
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index c7017558637..acf56fa2750 100644
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index 50710c16afe..0cef3cdffff 100644
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index c7017558637..acf56fa2750 100644
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index c398e42e899..581054d46db 100644
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index c398e42e899..581054d46db 100644
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index 166d0a25e06..0025ce6cf71 100644
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index c7017558637..acf56fa2750 100644
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index 166d0a25e06..0025ce6cf71 100644
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index c7017558637..acf56fa2750 100644
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netcoreapp;
diff --git a/src/libraries/System.Resources.ResourceManager/tests/Resources/TestClassWithoutNeutralResources.fr.resx b/src/libraries/System.Resources.ResourceManager/tests/Resources/TestClassWithoutNeutralResources.fr.resx
index 11f5fe1279a..edd5ea06946 100644
--- a/src/libraries/System.Resources.ResourceManager/tests/Resources/TestClassWithoutNeutralResources.fr.resx
+++ b/src/libraries/System.Resources.ResourceManager/tests/Resources/TestClassWithoutNeutralResources.fr.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Resources.ResourceManager/tests/Resources/TestResx.es-MX.resx b/src/libraries/System.Resources.ResourceManager/tests/Resources/TestResx.es-MX.resx
index 85eaa6987cc..0d4a4a6c52f 100644
--- a/src/libraries/System.Resources.ResourceManager/tests/Resources/TestResx.es-MX.resx
+++ b/src/libraries/System.Resources.ResourceManager/tests/Resources/TestResx.es-MX.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Resources.ResourceManager/tests/Resources/TestResx.es.resx b/src/libraries/System.Resources.ResourceManager/tests/Resources/TestResx.es.resx
index dc863f8600a..ba57fecd778 100644
--- a/src/libraries/System.Resources.ResourceManager/tests/Resources/TestResx.es.resx
+++ b/src/libraries/System.Resources.ResourceManager/tests/Resources/TestResx.es.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Resources.ResourceManager/tests/Resources/TestResx.fr-FR.resx b/src/libraries/System.Resources.ResourceManager/tests/Resources/TestResx.fr-FR.resx
index e5852169b6c..38eb20f3e62 100644
--- a/src/libraries/System.Resources.ResourceManager/tests/Resources/TestResx.fr-FR.resx
+++ b/src/libraries/System.Resources.ResourceManager/tests/Resources/TestResx.fr-FR.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Resources.ResourceManager/tests/Resources/TestResx.netstandard17.resx b/src/libraries/System.Resources.ResourceManager/tests/Resources/TestResx.netstandard17.resx
index b94de05d591..6ee9eecfe2a 100644
--- a/src/libraries/System.Resources.ResourceManager/tests/Resources/TestResx.netstandard17.resx
+++ b/src/libraries/System.Resources.ResourceManager/tests/Resources/TestResx.netstandard17.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Resources.ResourceManager/tests/Resources/TestResx.resx b/src/libraries/System.Resources.ResourceManager/tests/Resources/TestResx.resx
index 749f79ff204..d95ce4402ab 100644
--- a/src/libraries/System.Resources.ResourceManager/tests/Resources/TestResx.resx
+++ b/src/libraries/System.Resources.ResourceManager/tests/Resources/TestResx.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Resources.Writer/Directory.Build.props b/src/libraries/System.Resources.Writer/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Resources.Writer/Directory.Build.props
+++ b/src/libraries/System.Resources.Writer/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Resources.Writer/ref/Configurations.props b/src/libraries/System.Resources.Writer/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.Resources.Writer/ref/Configurations.props
+++ b/src/libraries/System.Resources.Writer/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Resources.Writer/src/Configurations.props b/src/libraries/System.Resources.Writer/src/Configurations.props
index b7611d75b72..aa1d3487597 100644
--- a/src/libraries/System.Resources.Writer/src/Configurations.props
+++ b/src/libraries/System.Resources.Writer/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Resources.Writer/src/Resources/Strings.resx b/src/libraries/System.Resources.Writer/src/Resources/Strings.resx
index d846ba40e30..dc7bf079c3b 100644
--- a/src/libraries/System.Resources.Writer/src/Resources/Strings.resx
+++ b/src/libraries/System.Resources.Writer/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Resources.Writer/tests/Configurations.props b/src/libraries/System.Resources.Writer/tests/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/System.Resources.Writer/tests/Configurations.props
+++ b/src/libraries/System.Resources.Writer/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.Caching/Directory.Build.props b/src/libraries/System.Runtime.Caching/Directory.Build.props
index 7c0fa810dcc..131fb6770cd 100644
--- a/src/libraries/System.Runtime.Caching/Directory.Build.props
+++ b/src/libraries/System.Runtime.Caching/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<!-- this assembly is inbox in desktop, do not version it unless you
diff --git a/src/libraries/System.Runtime.Caching/pkg/System.Runtime.Caching.pkgproj b/src/libraries/System.Runtime.Caching/pkg/System.Runtime.Caching.pkgproj
index f816ab0d893..2fc60ca2ea0 100644
--- a/src/libraries/System.Runtime.Caching/pkg/System.Runtime.Caching.pkgproj
+++ b/src/libraries/System.Runtime.Caching/pkg/System.Runtime.Caching.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.Runtime.Caching.csproj">
diff --git a/src/libraries/System.Runtime.Caching/ref/Configurations.props b/src/libraries/System.Runtime.Caching/ref/Configurations.props
index 78953dfc885..2870dced459 100644
--- a/src/libraries/System.Runtime.Caching/ref/Configurations.props
+++ b/src/libraries/System.Runtime.Caching/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.Caching/src/Configurations.props b/src/libraries/System.Runtime.Caching/src/Configurations.props
index f1bf1fb00dd..ed3c92efa0d 100644
--- a/src/libraries/System.Runtime.Caching/src/Configurations.props
+++ b/src/libraries/System.Runtime.Caching/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<PackageConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.Caching/src/Resources/Strings.resx b/src/libraries/System.Runtime.Caching/src/Resources/Strings.resx
index 9ac10ce4edd..92219ad3083 100644
--- a/src/libraries/System.Runtime.Caching/src/Resources/Strings.resx
+++ b/src/libraries/System.Runtime.Caching/src/Resources/Strings.resx
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/System.Runtime.Caching/tests/Configurations.props b/src/libraries/System.Runtime.Caching/tests/Configurations.props
index 237253623ae..2afdc55d7f2 100644
--- a/src/libraries/System.Runtime.Caching/tests/Configurations.props
+++ b/src/libraries/System.Runtime.Caching/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Windows_NT;
diff --git a/src/libraries/System.Runtime.CompilerServices.Unsafe/Directory.Build.props b/src/libraries/System.Runtime.CompilerServices.Unsafe/Directory.Build.props
index b06ba557398..0eef24e4ca4 100644
--- a/src/libraries/System.Runtime.CompilerServices.Unsafe/Directory.Build.props
+++ b/src/libraries/System.Runtime.CompilerServices.Unsafe/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.5.0</AssemblyVersion>
diff --git a/src/libraries/System.Runtime.CompilerServices.Unsafe/pkg/System.Runtime.CompilerServices.Unsafe.pkgproj b/src/libraries/System.Runtime.CompilerServices.Unsafe/pkg/System.Runtime.CompilerServices.Unsafe.pkgproj
index 4d3f85a0ce9..dff6b293fd5 100644
--- a/src/libraries/System.Runtime.CompilerServices.Unsafe/pkg/System.Runtime.CompilerServices.Unsafe.pkgproj
+++ b/src/libraries/System.Runtime.CompilerServices.Unsafe/pkg/System.Runtime.CompilerServices.Unsafe.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<PackageIndex Include="$(RepoRoot)\pkg\baseline\packageBaseline.1.1.json" />
diff --git a/src/libraries/System.Runtime.CompilerServices.Unsafe/ref/Configurations.props b/src/libraries/System.Runtime.CompilerServices.Unsafe/ref/Configurations.props
index 84da57e60d7..4e489da4b37 100644
--- a/src/libraries/System.Runtime.CompilerServices.Unsafe/ref/Configurations.props
+++ b/src/libraries/System.Runtime.CompilerServices.Unsafe/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard1.0;
diff --git a/src/libraries/System.Runtime.CompilerServices.Unsafe/src/Configurations.props b/src/libraries/System.Runtime.CompilerServices.Unsafe/src/Configurations.props
index 2a68e751ff4..3c29fb6da61 100644
--- a/src/libraries/System.Runtime.CompilerServices.Unsafe/src/Configurations.props
+++ b/src/libraries/System.Runtime.CompilerServices.Unsafe/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<PackageConfigurations>
netcoreapp2.0;
diff --git a/src/libraries/System.Runtime.CompilerServices.Unsafe/tests/Configurations.props b/src/libraries/System.Runtime.CompilerServices.Unsafe/tests/Configurations.props
index 78953dfc885..d6385a20201 100644
--- a/src/libraries/System.Runtime.CompilerServices.Unsafe/tests/Configurations.props
+++ b/src/libraries/System.Runtime.CompilerServices.Unsafe/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.CompilerServices.VisualC/Directory.Build.props b/src/libraries/System.Runtime.CompilerServices.VisualC/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Runtime.CompilerServices.VisualC/Directory.Build.props
+++ b/src/libraries/System.Runtime.CompilerServices.VisualC/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Runtime.CompilerServices.VisualC/ref/Configurations.props b/src/libraries/System.Runtime.CompilerServices.VisualC/ref/Configurations.props
index c7017558637..acf56fa2750 100644
--- a/src/libraries/System.Runtime.CompilerServices.VisualC/ref/Configurations.props
+++ b/src/libraries/System.Runtime.CompilerServices.VisualC/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Runtime.CompilerServices.VisualC/src/Configurations.props b/src/libraries/System.Runtime.CompilerServices.VisualC/src/Configurations.props
index b7611d75b72..aa1d3487597 100644
--- a/src/libraries/System.Runtime.CompilerServices.VisualC/src/Configurations.props
+++ b/src/libraries/System.Runtime.CompilerServices.VisualC/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Runtime.CompilerServices.VisualC/tests/Configurations.props b/src/libraries/System.Runtime.CompilerServices.VisualC/tests/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Runtime.CompilerServices.VisualC/tests/Configurations.props
+++ b/src/libraries/System.Runtime.CompilerServices.VisualC/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.Extensions/Directory.Build.props b/src/libraries/System.Runtime.Extensions/Directory.Build.props
index 047458dfc57..988124d2d8e 100644
--- a/src/libraries/System.Runtime.Extensions/Directory.Build.props
+++ b/src/libraries/System.Runtime.Extensions/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.2.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Runtime.Extensions/ref/Configurations.props b/src/libraries/System.Runtime.Extensions/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Runtime.Extensions/ref/Configurations.props
+++ b/src/libraries/System.Runtime.Extensions/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Runtime.Extensions/src/Configurations.props b/src/libraries/System.Runtime.Extensions/src/Configurations.props
index e92ae794e59..29e6e7bc90d 100644
--- a/src/libraries/System.Runtime.Extensions/src/Configurations.props
+++ b/src/libraries/System.Runtime.Extensions/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Unix;
diff --git a/src/libraries/System.Runtime.Extensions/src/Resources/Strings.resx b/src/libraries/System.Runtime.Extensions/src/Resources/Strings.resx
index ca6e57270fe..0223e8d2ad2 100644
--- a/src/libraries/System.Runtime.Extensions/src/Resources/Strings.resx
+++ b/src/libraries/System.Runtime.Extensions/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Runtime.Extensions/tests/AssemblyResolveTestApp/Configurations.props b/src/libraries/System.Runtime.Extensions/tests/AssemblyResolveTestApp/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Runtime.Extensions/tests/AssemblyResolveTestApp/Configurations.props
+++ b/src/libraries/System.Runtime.Extensions/tests/AssemblyResolveTestApp/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.Extensions/tests/Configurations.props b/src/libraries/System.Runtime.Extensions/tests/Configurations.props
index 99659fc4c48..231484cfa97 100644
--- a/src/libraries/System.Runtime.Extensions/tests/Configurations.props
+++ b/src/libraries/System.Runtime.Extensions/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Windows_NT;
diff --git a/src/libraries/System.Runtime.Extensions/tests/Performance/Configurations.props b/src/libraries/System.Runtime.Extensions/tests/Performance/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Runtime.Extensions/tests/Performance/Configurations.props
+++ b/src/libraries/System.Runtime.Extensions/tests/Performance/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.Extensions/tests/TestApp/Configurations.props b/src/libraries/System.Runtime.Extensions/tests/TestApp/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Runtime.Extensions/tests/TestApp/Configurations.props
+++ b/src/libraries/System.Runtime.Extensions/tests/TestApp/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.Extensions/tests/TestApp/Resources/Strings.resx b/src/libraries/System.Runtime.Extensions/tests/TestApp/Resources/Strings.resx
index 05d1bda4fab..4b84912f1d3 100644
--- a/src/libraries/System.Runtime.Extensions/tests/TestApp/Resources/Strings.resx
+++ b/src/libraries/System.Runtime.Extensions/tests/TestApp/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Runtime.Extensions/tests/TestAppOutsideOfTPA/Configurations.props b/src/libraries/System.Runtime.Extensions/tests/TestAppOutsideOfTPA/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Runtime.Extensions/tests/TestAppOutsideOfTPA/Configurations.props
+++ b/src/libraries/System.Runtime.Extensions/tests/TestAppOutsideOfTPA/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.Extensions/tests/VoidMainWithExitCodeApp/Configurations.props b/src/libraries/System.Runtime.Extensions/tests/VoidMainWithExitCodeApp/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Runtime.Extensions/tests/VoidMainWithExitCodeApp/Configurations.props
+++ b/src/libraries/System.Runtime.Extensions/tests/VoidMainWithExitCodeApp/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.Handles/Directory.Build.props b/src/libraries/System.Runtime.Handles/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Runtime.Handles/Directory.Build.props
+++ b/src/libraries/System.Runtime.Handles/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Runtime.Handles/ref/Configurations.props b/src/libraries/System.Runtime.Handles/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Runtime.Handles/ref/Configurations.props
+++ b/src/libraries/System.Runtime.Handles/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Runtime.Handles/src/Configurations.props b/src/libraries/System.Runtime.Handles/src/Configurations.props
index dcb70afd11c..31322005d78 100644
--- a/src/libraries/System.Runtime.Handles/src/Configurations.props
+++ b/src/libraries/System.Runtime.Handles/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
uapaot-Windows_NT;
diff --git a/src/libraries/System.Runtime.Handles/tests/Configurations.props b/src/libraries/System.Runtime.Handles/tests/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Runtime.Handles/tests/Configurations.props
+++ b/src/libraries/System.Runtime.Handles/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.InteropServices.RuntimeInformation/Directory.Build.props b/src/libraries/System.Runtime.InteropServices.RuntimeInformation/Directory.Build.props
index f1692a14509..21df61f36c2 100644
--- a/src/libraries/System.Runtime.InteropServices.RuntimeInformation/Directory.Build.props
+++ b/src/libraries/System.Runtime.InteropServices.RuntimeInformation/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.3.0</AssemblyVersion>
diff --git a/src/libraries/System.Runtime.InteropServices.RuntimeInformation/ref/Configurations.props b/src/libraries/System.Runtime.InteropServices.RuntimeInformation/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Runtime.InteropServices.RuntimeInformation/ref/Configurations.props
+++ b/src/libraries/System.Runtime.InteropServices.RuntimeInformation/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Runtime.InteropServices.RuntimeInformation/src/Configurations.props b/src/libraries/System.Runtime.InteropServices.RuntimeInformation/src/Configurations.props
index f11a8087a18..cd8f3815a80 100644
--- a/src/libraries/System.Runtime.InteropServices.RuntimeInformation/src/Configurations.props
+++ b/src/libraries/System.Runtime.InteropServices.RuntimeInformation/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.Runtime.InteropServices.RuntimeInformation/src/Resources/Strings.resx b/src/libraries/System.Runtime.InteropServices.RuntimeInformation/src/Resources/Strings.resx
index 5d87c90339d..e554cfe1fe2 100644
--- a/src/libraries/System.Runtime.InteropServices.RuntimeInformation/src/Resources/Strings.resx
+++ b/src/libraries/System.Runtime.InteropServices.RuntimeInformation/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Runtime.InteropServices.RuntimeInformation/tests/Configurations.props b/src/libraries/System.Runtime.InteropServices.RuntimeInformation/tests/Configurations.props
index 56809fbdcb4..07ecbe269b5 100644
--- a/src/libraries/System.Runtime.InteropServices.RuntimeInformation/tests/Configurations.props
+++ b/src/libraries/System.Runtime.InteropServices.RuntimeInformation/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard-Unix;
diff --git a/src/libraries/System.Runtime.InteropServices.WindowsRuntime/Directory.Build.props b/src/libraries/System.Runtime.InteropServices.WindowsRuntime/Directory.Build.props
index cac4c947b8b..dd429856628 100644
--- a/src/libraries/System.Runtime.InteropServices.WindowsRuntime/Directory.Build.props
+++ b/src/libraries/System.Runtime.InteropServices.WindowsRuntime/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.3.0</AssemblyVersion>
diff --git a/src/libraries/System.Runtime.InteropServices.WindowsRuntime/ref/Configurations.props b/src/libraries/System.Runtime.InteropServices.WindowsRuntime/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Runtime.InteropServices.WindowsRuntime/ref/Configurations.props
+++ b/src/libraries/System.Runtime.InteropServices.WindowsRuntime/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Runtime.InteropServices.WindowsRuntime/src/Configurations.props b/src/libraries/System.Runtime.InteropServices.WindowsRuntime/src/Configurations.props
index 1779095e5fa..5fba4d1a181 100644
--- a/src/libraries/System.Runtime.InteropServices.WindowsRuntime/src/Configurations.props
+++ b/src/libraries/System.Runtime.InteropServices.WindowsRuntime/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
uapaot-Windows_NT;
diff --git a/src/libraries/System.Runtime.InteropServices.WindowsRuntime/src/Resources/Strings.resx b/src/libraries/System.Runtime.InteropServices.WindowsRuntime/src/Resources/Strings.resx
index 1e8912fc3fc..a1e87ad2d4b 100644
--- a/src/libraries/System.Runtime.InteropServices.WindowsRuntime/src/Resources/Strings.resx
+++ b/src/libraries/System.Runtime.InteropServices.WindowsRuntime/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Runtime.InteropServices.WindowsRuntime/tests/Configurations.props b/src/libraries/System.Runtime.InteropServices.WindowsRuntime/tests/Configurations.props
index 1779095e5fa..5fba4d1a181 100644
--- a/src/libraries/System.Runtime.InteropServices.WindowsRuntime/tests/Configurations.props
+++ b/src/libraries/System.Runtime.InteropServices.WindowsRuntime/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
uapaot-Windows_NT;
diff --git a/src/libraries/System.Runtime.InteropServices/Directory.Build.props b/src/libraries/System.Runtime.InteropServices/Directory.Build.props
index 047458dfc57..988124d2d8e 100644
--- a/src/libraries/System.Runtime.InteropServices/Directory.Build.props
+++ b/src/libraries/System.Runtime.InteropServices/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.2.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Runtime.InteropServices/ref/Configurations.props b/src/libraries/System.Runtime.InteropServices/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Runtime.InteropServices/ref/Configurations.props
+++ b/src/libraries/System.Runtime.InteropServices/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Runtime.InteropServices/src/Configurations.props b/src/libraries/System.Runtime.InteropServices/src/Configurations.props
index 4b4fb25252b..1a0eb0f96e3 100644
--- a/src/libraries/System.Runtime.InteropServices/src/Configurations.props
+++ b/src/libraries/System.Runtime.InteropServices/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
uapaot-Windows_NT;
diff --git a/src/libraries/System.Runtime.InteropServices/src/Resources/Strings.resx b/src/libraries/System.Runtime.InteropServices/src/Resources/Strings.resx
index 4861a46c626..e6f882c8df8 100644
--- a/src/libraries/System.Runtime.InteropServices/src/Resources/Strings.resx
+++ b/src/libraries/System.Runtime.InteropServices/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Runtime.InteropServices/tests/Configurations.props b/src/libraries/System.Runtime.InteropServices/tests/Configurations.props
index a78d4b982c2..6820973243a 100644
--- a/src/libraries/System.Runtime.InteropServices/tests/Configurations.props
+++ b/src/libraries/System.Runtime.InteropServices/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.Intrinsics/Directory.Build.props b/src/libraries/System.Runtime.Intrinsics/Directory.Build.props
index dab9c647d86..107531f3585 100644
--- a/src/libraries/System.Runtime.Intrinsics/Directory.Build.props
+++ b/src/libraries/System.Runtime.Intrinsics/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
diff --git a/src/libraries/System.Runtime.Intrinsics/ref/Configurations.props b/src/libraries/System.Runtime.Intrinsics/ref/Configurations.props
index 2845c11c541..89d6ac0f025 100644
--- a/src/libraries/System.Runtime.Intrinsics/ref/Configurations.props
+++ b/src/libraries/System.Runtime.Intrinsics/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Runtime.Intrinsics/src/Configurations.props b/src/libraries/System.Runtime.Intrinsics/src/Configurations.props
index c096da2b273..002c6d3b9d6 100644
--- a/src/libraries/System.Runtime.Intrinsics/src/Configurations.props
+++ b/src/libraries/System.Runtime.Intrinsics/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Windows_NT;
diff --git a/src/libraries/System.Runtime.Loader/Directory.Build.props b/src/libraries/System.Runtime.Loader/Directory.Build.props
index afeaaa4ba4b..cdd8d84dddb 100644
--- a/src/libraries/System.Runtime.Loader/Directory.Build.props
+++ b/src/libraries/System.Runtime.Loader/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.0.0</AssemblyVersion>
diff --git a/src/libraries/System.Runtime.Loader/ref/Configurations.props b/src/libraries/System.Runtime.Loader/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Runtime.Loader/ref/Configurations.props
+++ b/src/libraries/System.Runtime.Loader/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Runtime.Loader/src/Configurations.props b/src/libraries/System.Runtime.Loader/src/Configurations.props
index afd7b401c08..8b997a7f94c 100644
--- a/src/libraries/System.Runtime.Loader/src/Configurations.props
+++ b/src/libraries/System.Runtime.Loader/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Windows_NT;
diff --git a/src/libraries/System.Runtime.Loader/tests/Configurations.props b/src/libraries/System.Runtime.Loader/tests/Configurations.props
index 553cfdafc47..ad97fa89fc4 100644
--- a/src/libraries/System.Runtime.Loader/tests/Configurations.props
+++ b/src/libraries/System.Runtime.Loader/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Unix;
diff --git a/src/libraries/System.Runtime.Loader/tests/DefaultContext/Configurations.props b/src/libraries/System.Runtime.Loader/tests/DefaultContext/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Runtime.Loader/tests/DefaultContext/Configurations.props
+++ b/src/libraries/System.Runtime.Loader/tests/DefaultContext/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Runtime.Loader/tests/RefEmitLoadContext/Configurations.props b/src/libraries/System.Runtime.Loader/tests/RefEmitLoadContext/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Runtime.Loader/tests/RefEmitLoadContext/Configurations.props
+++ b/src/libraries/System.Runtime.Loader/tests/RefEmitLoadContext/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Runtime.Loader/tests/System.Runtime.Loader.Noop.Assembly/Configurations.props b/src/libraries/System.Runtime.Loader/tests/System.Runtime.Loader.Noop.Assembly/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Runtime.Loader/tests/System.Runtime.Loader.Noop.Assembly/Configurations.props
+++ b/src/libraries/System.Runtime.Loader/tests/System.Runtime.Loader.Noop.Assembly/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Runtime.Loader/tests/System.Runtime.Loader.Test.Assembly/Configurations.props b/src/libraries/System.Runtime.Loader/tests/System.Runtime.Loader.Test.Assembly/Configurations.props
index 77a4b65bc94..febffb03ac6 100644
--- a/src/libraries/System.Runtime.Loader/tests/System.Runtime.Loader.Test.Assembly/Configurations.props
+++ b/src/libraries/System.Runtime.Loader/tests/System.Runtime.Loader.Test.Assembly/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.Loader/tests/System.Runtime.Loader.Test.Assembly2/Configurations.props b/src/libraries/System.Runtime.Loader/tests/System.Runtime.Loader.Test.Assembly2/Configurations.props
index 271a4be4c93..68ac7b9c023 100644
--- a/src/libraries/System.Runtime.Loader/tests/System.Runtime.Loader.Test.Assembly2/Configurations.props
+++ b/src/libraries/System.Runtime.Loader/tests/System.Runtime.Loader.Test.Assembly2/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.Loader/tests/System.Runtime.Loader.Test.AssemblyNotSupported/Configurations.props b/src/libraries/System.Runtime.Loader/tests/System.Runtime.Loader.Test.AssemblyNotSupported/Configurations.props
index 271a4be4c93..68ac7b9c023 100644
--- a/src/libraries/System.Runtime.Loader/tests/System.Runtime.Loader.Test.AssemblyNotSupported/Configurations.props
+++ b/src/libraries/System.Runtime.Loader/tests/System.Runtime.Loader.Test.AssemblyNotSupported/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.Numerics/Directory.Build.props b/src/libraries/System.Runtime.Numerics/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Runtime.Numerics/Directory.Build.props
+++ b/src/libraries/System.Runtime.Numerics/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Runtime.Numerics/ref/Configurations.props b/src/libraries/System.Runtime.Numerics/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Runtime.Numerics/ref/Configurations.props
+++ b/src/libraries/System.Runtime.Numerics/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Runtime.Numerics/src/Configurations.props b/src/libraries/System.Runtime.Numerics/src/Configurations.props
index a8910ef718c..cdeb74f110c 100644
--- a/src/libraries/System.Runtime.Numerics/src/Configurations.props
+++ b/src/libraries/System.Runtime.Numerics/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.Runtime.Numerics/src/Resources/Strings.resx b/src/libraries/System.Runtime.Numerics/src/Resources/Strings.resx
index a8d6577fec0..25aac5f9c67 100644
--- a/src/libraries/System.Runtime.Numerics/src/Resources/Strings.resx
+++ b/src/libraries/System.Runtime.Numerics/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Runtime.Numerics/tests/Configurations.props b/src/libraries/System.Runtime.Numerics/tests/Configurations.props
index 271a4be4c93..68ac7b9c023 100644
--- a/src/libraries/System.Runtime.Numerics/tests/Configurations.props
+++ b/src/libraries/System.Runtime.Numerics/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.Numerics/tests/Performance/Configurations.props b/src/libraries/System.Runtime.Numerics/tests/Performance/Configurations.props
index 8b803e0772f..f5d3d45ffbf 100644
--- a/src/libraries/System.Runtime.Numerics/tests/Performance/Configurations.props
+++ b/src/libraries/System.Runtime.Numerics/tests/Performance/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Runtime.Serialization.Formatters/Directory.Build.props b/src/libraries/System.Runtime.Serialization.Formatters/Directory.Build.props
index f1692a14509..21df61f36c2 100644
--- a/src/libraries/System.Runtime.Serialization.Formatters/Directory.Build.props
+++ b/src/libraries/System.Runtime.Serialization.Formatters/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.3.0</AssemblyVersion>
diff --git a/src/libraries/System.Runtime.Serialization.Formatters/ref/Configurations.props b/src/libraries/System.Runtime.Serialization.Formatters/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Runtime.Serialization.Formatters/ref/Configurations.props
+++ b/src/libraries/System.Runtime.Serialization.Formatters/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Runtime.Serialization.Formatters/src/Configurations.props b/src/libraries/System.Runtime.Serialization.Formatters/src/Configurations.props
index a8910ef718c..cdeb74f110c 100644
--- a/src/libraries/System.Runtime.Serialization.Formatters/src/Configurations.props
+++ b/src/libraries/System.Runtime.Serialization.Formatters/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.Runtime.Serialization.Formatters/src/Resources/Strings.resx b/src/libraries/System.Runtime.Serialization.Formatters/src/Resources/Strings.resx
index 4783ed048c6..078b0d67e05 100644
--- a/src/libraries/System.Runtime.Serialization.Formatters/src/Resources/Strings.resx
+++ b/src/libraries/System.Runtime.Serialization.Formatters/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Runtime.Serialization.Formatters/tests/Configurations.props b/src/libraries/System.Runtime.Serialization.Formatters/tests/Configurations.props
index f3e74d79915..1ca7677506d 100644
--- a/src/libraries/System.Runtime.Serialization.Formatters/tests/Configurations.props
+++ b/src/libraries/System.Runtime.Serialization.Formatters/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<!-- Needs netfx configuration per bug (dotnet/corefx #17575) so tests are actively running in desktop -->
<BuildConfigurations>
diff --git a/src/libraries/System.Runtime.Serialization.Json/Directory.Build.props b/src/libraries/System.Runtime.Serialization.Json/Directory.Build.props
index 472e418a974..9162773bfdc 100644
--- a/src/libraries/System.Runtime.Serialization.Json/Directory.Build.props
+++ b/src/libraries/System.Runtime.Serialization.Json/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.4.0</AssemblyVersion>
diff --git a/src/libraries/System.Runtime.Serialization.Json/ref/Configurations.props b/src/libraries/System.Runtime.Serialization.Json/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Runtime.Serialization.Json/ref/Configurations.props
+++ b/src/libraries/System.Runtime.Serialization.Json/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Runtime.Serialization.Json/src/Configurations.props b/src/libraries/System.Runtime.Serialization.Json/src/Configurations.props
index b7611d75b72..591dde55dde 100644
--- a/src/libraries/System.Runtime.Serialization.Json/src/Configurations.props
+++ b/src/libraries/System.Runtime.Serialization.Json/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Runtime.Serialization.Json/tests/Configurations.props b/src/libraries/System.Runtime.Serialization.Json/tests/Configurations.props
index bd930d0f901..2260378844b 100644
--- a/src/libraries/System.Runtime.Serialization.Json/tests/Configurations.props
+++ b/src/libraries/System.Runtime.Serialization.Json/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.Serialization.Json/tests/Performance/Configurations.props b/src/libraries/System.Runtime.Serialization.Json/tests/Performance/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Runtime.Serialization.Json/tests/Performance/Configurations.props
+++ b/src/libraries/System.Runtime.Serialization.Json/tests/Performance/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.Serialization.Json/tests/ReflectionOnly/Configurations.props b/src/libraries/System.Runtime.Serialization.Json/tests/ReflectionOnly/Configurations.props
index bd930d0f901..2260378844b 100644
--- a/src/libraries/System.Runtime.Serialization.Json/tests/ReflectionOnly/Configurations.props
+++ b/src/libraries/System.Runtime.Serialization.Json/tests/ReflectionOnly/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.Serialization.Primitives/Directory.Build.props b/src/libraries/System.Runtime.Serialization.Primitives/Directory.Build.props
index 047458dfc57..988124d2d8e 100644
--- a/src/libraries/System.Runtime.Serialization.Primitives/Directory.Build.props
+++ b/src/libraries/System.Runtime.Serialization.Primitives/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.2.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Runtime.Serialization.Primitives/ref/Configurations.props b/src/libraries/System.Runtime.Serialization.Primitives/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Runtime.Serialization.Primitives/ref/Configurations.props
+++ b/src/libraries/System.Runtime.Serialization.Primitives/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Runtime.Serialization.Primitives/src/Configurations.props b/src/libraries/System.Runtime.Serialization.Primitives/src/Configurations.props
index dcb70afd11c..31322005d78 100644
--- a/src/libraries/System.Runtime.Serialization.Primitives/src/Configurations.props
+++ b/src/libraries/System.Runtime.Serialization.Primitives/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
uapaot-Windows_NT;
diff --git a/src/libraries/System.Runtime.Serialization.Primitives/src/Resources/Strings.resx b/src/libraries/System.Runtime.Serialization.Primitives/src/Resources/Strings.resx
index 3f3cead836f..43f9e0b26e3 100644
--- a/src/libraries/System.Runtime.Serialization.Primitives/src/Resources/Strings.resx
+++ b/src/libraries/System.Runtime.Serialization.Primitives/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Runtime.Serialization.Primitives/tests/Configurations.props b/src/libraries/System.Runtime.Serialization.Primitives/tests/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Runtime.Serialization.Primitives/tests/Configurations.props
+++ b/src/libraries/System.Runtime.Serialization.Primitives/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.Serialization.Xml/Directory.Build.props b/src/libraries/System.Runtime.Serialization.Xml/Directory.Build.props
index 50710c16afe..0cef3cdffff 100644
--- a/src/libraries/System.Runtime.Serialization.Xml/Directory.Build.props
+++ b/src/libraries/System.Runtime.Serialization.Xml/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.4.0</AssemblyVersion>
diff --git a/src/libraries/System.Runtime.Serialization.Xml/ref/Configurations.props b/src/libraries/System.Runtime.Serialization.Xml/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Runtime.Serialization.Xml/ref/Configurations.props
+++ b/src/libraries/System.Runtime.Serialization.Xml/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Runtime.Serialization.Xml/src/Configurations.props b/src/libraries/System.Runtime.Serialization.Xml/src/Configurations.props
index a8910ef718c..cdeb74f110c 100644
--- a/src/libraries/System.Runtime.Serialization.Xml/src/Configurations.props
+++ b/src/libraries/System.Runtime.Serialization.Xml/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.Runtime.Serialization.Xml/tests/Canonicalization/Configurations.props b/src/libraries/System.Runtime.Serialization.Xml/tests/Canonicalization/Configurations.props
index 5ead6b58fee..5866d421df5 100644
--- a/src/libraries/System.Runtime.Serialization.Xml/tests/Canonicalization/Configurations.props
+++ b/src/libraries/System.Runtime.Serialization.Xml/tests/Canonicalization/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.Serialization.Xml/tests/Configurations.props b/src/libraries/System.Runtime.Serialization.Xml/tests/Configurations.props
index bd930d0f901..2260378844b 100644
--- a/src/libraries/System.Runtime.Serialization.Xml/tests/Configurations.props
+++ b/src/libraries/System.Runtime.Serialization.Xml/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.Serialization.Xml/tests/Performance/Configurations.props b/src/libraries/System.Runtime.Serialization.Xml/tests/Performance/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Runtime.Serialization.Xml/tests/Performance/Configurations.props
+++ b/src/libraries/System.Runtime.Serialization.Xml/tests/Performance/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.Serialization.Xml/tests/ReflectionOnly/Configurations.props b/src/libraries/System.Runtime.Serialization.Xml/tests/ReflectionOnly/Configurations.props
index bd930d0f901..2260378844b 100644
--- a/src/libraries/System.Runtime.Serialization.Xml/tests/ReflectionOnly/Configurations.props
+++ b/src/libraries/System.Runtime.Serialization.Xml/tests/ReflectionOnly/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/Directory.Build.props b/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/Directory.Build.props
index 3df95f53bb4..bfa60abb636 100644
--- a/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/Directory.Build.props
+++ b/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.4.0</AssemblyVersion>
diff --git a/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/pkg/System.Runtime.WindowsRuntime.UI.Xaml.pkgproj b/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/pkg/System.Runtime.WindowsRuntime.UI.Xaml.pkgproj
index 321a11345d7..10b4e354fbf 100644
--- a/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/pkg/System.Runtime.WindowsRuntime.UI.Xaml.pkgproj
+++ b/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/pkg/System.Runtime.WindowsRuntime.UI.Xaml.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.Runtime.WindowsRuntime.UI.Xaml.csproj">
diff --git a/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/ref/Configurations.props b/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/ref/Configurations.props
index 600231d88c4..6a88cfc1ed6 100644
--- a/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/ref/Configurations.props
+++ b/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<PackageConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/src/Configurations.props b/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/src/Configurations.props
index 04701108e46..17a96b153b1 100644
--- a/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/src/Configurations.props
+++ b/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<PackageConfigurations>
netstandard1.1;
diff --git a/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/src/Resources/Strings.resx b/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/src/Resources/Strings.resx
index a12a5ae00ce..56adff40d99 100644
--- a/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/src/Resources/Strings.resx
+++ b/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/tests/Configurations.props b/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/tests/Configurations.props
index 0cee6a52711..945a2e85a05 100644
--- a/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/tests/Configurations.props
+++ b/src/libraries/System.Runtime.WindowsRuntime.UI.Xaml/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.Runtime.WindowsRuntime/Directory.Build.props b/src/libraries/System.Runtime.WindowsRuntime/Directory.Build.props
index 8eda273b720..98e5c636377 100644
--- a/src/libraries/System.Runtime.WindowsRuntime/Directory.Build.props
+++ b/src/libraries/System.Runtime.WindowsRuntime/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.14.0</AssemblyVersion>
diff --git a/src/libraries/System.Runtime.WindowsRuntime/pkg/System.Runtime.WindowsRuntime.pkgproj b/src/libraries/System.Runtime.WindowsRuntime/pkg/System.Runtime.WindowsRuntime.pkgproj
index b309462133e..4559a092e76 100644
--- a/src/libraries/System.Runtime.WindowsRuntime/pkg/System.Runtime.WindowsRuntime.pkgproj
+++ b/src/libraries/System.Runtime.WindowsRuntime/pkg/System.Runtime.WindowsRuntime.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.Runtime.WindowsRuntime.csproj">
diff --git a/src/libraries/System.Runtime.WindowsRuntime/ref/Configurations.props b/src/libraries/System.Runtime.WindowsRuntime/ref/Configurations.props
index 600231d88c4..6a88cfc1ed6 100644
--- a/src/libraries/System.Runtime.WindowsRuntime/ref/Configurations.props
+++ b/src/libraries/System.Runtime.WindowsRuntime/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<PackageConfigurations>
netstandard;
diff --git a/src/libraries/System.Runtime.WindowsRuntime/src/Configurations.props b/src/libraries/System.Runtime.WindowsRuntime/src/Configurations.props
index db1b5d367d5..ccb07495492 100644
--- a/src/libraries/System.Runtime.WindowsRuntime/src/Configurations.props
+++ b/src/libraries/System.Runtime.WindowsRuntime/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<PackageConfigurations>
netstandard1.0;
diff --git a/src/libraries/System.Runtime.WindowsRuntime/src/Resources/Strings.resx b/src/libraries/System.Runtime.WindowsRuntime/src/Resources/Strings.resx
index eae22217d40..719c7b7380e 100644
--- a/src/libraries/System.Runtime.WindowsRuntime/src/Resources/Strings.resx
+++ b/src/libraries/System.Runtime.WindowsRuntime/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
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index 0cee6a52711..945a2e85a05 100644
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index 047458dfc57..988124d2d8e 100644
--- a/src/libraries/System.Runtime/Directory.Build.props
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index 83fbdb9cfd2..78fe5293a55 100644
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index 4b4fb25252b..78e091b28e2 100644
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index 3d94bd9a705..af7d10ae81d 100644
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index c398e42e899..581054d46db 100644
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index 20a3fce93ad..b4a77348bc8 100644
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index 7b470b3f4ae..edd91d331c8 100644
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index 166d0a25e06..0025ce6cf71 100644
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index c7017558637..f97cd5ea7a9 100644
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index eca2acc0bc8..3f43a7a1710 100644
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index c7017558637..f97cd5ea7a9 100644
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index fab4e124269..b9957adc999 100644
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index c7017558637..f97cd5ea7a9 100644
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index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Security.Cryptography.Encoding/Directory.Build.props
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index c7017558637..f97cd5ea7a9 100644
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index 05d3ab66c3d..d9095848079 100644
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index baed2a4bbd0..0849bad420f 100644
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index cfc57211a43..2b7db4cef13 100644
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index 0cfa35c536e..eb6a816f421 100644
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index 71e2cc39cb4..7de773a482a 100644
--- a/src/libraries/System.Security.Cryptography.OpenSsl/Directory.Build.props
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index 2fe8a6c551b..d81e04387b1 100644
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<ItemGroup>
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index 2845c11c541..89d6ac0f025 100644
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index 71cac7fa93f..59df922f46f 100644
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index 429ea8f0c1b..01bbec35fde 100644
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index 971d797958e..03ab26ca4ad 100644
--- a/src/libraries/System.Security.Cryptography.OpenSsl/tests/Configurations.props
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index 0749bb166fc..a0dc52cd8f4 100644
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index 53b04c8edec..3c619d1ecc9 100644
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index 494650312fa..acd9b5e23e8 100644
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index 236c9de3ee0..589f0c7fddc 100644
--- a/src/libraries/System.Security.Cryptography.Pkcs/src/Configurations.props
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index bfeac027aa9..3e92905772a 100644
--- a/src/libraries/System.Security.Cryptography.Pkcs/src/Resources/Strings.resx
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index 654bd4da096..eb25881ac2c 100644
--- a/src/libraries/System.Security.Cryptography.Pkcs/tests/Configurations.props
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index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Security.Cryptography.Primitives/Directory.Build.props
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index c7017558637..f97cd5ea7a9 100644
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index a8910ef718c..cdeb74f110c 100644
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index 7c64e07b619..455ec14a086 100644
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index d3ac8a63c74..a1eadd7648d 100644
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index afbc21511c0..98004a4badf 100644
--- a/src/libraries/System.Security.Cryptography.ProtectedData/Directory.Build.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<PropertyGroup>
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diff --git a/src/libraries/System.Security.Cryptography.ProtectedData/pkg/System.Security.Cryptography.ProtectedData.pkgproj b/src/libraries/System.Security.Cryptography.ProtectedData/pkg/System.Security.Cryptography.ProtectedData.pkgproj
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
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index cfd4fad4086..d7038eb46f2 100644
--- a/src/libraries/System.Security.Cryptography.ProtectedData/ref/Configurations.props
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index 2b3ef906840..4de8a53437e 100644
--- a/src/libraries/System.Security.Cryptography.ProtectedData/src/Configurations.props
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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diff --git a/src/libraries/System.Security.Cryptography.ProtectedData/src/Resources/Strings.resx b/src/libraries/System.Security.Cryptography.ProtectedData/src/Resources/Strings.resx
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index 249c8c18b46..611acec17f5 100644
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index 047458dfc57..988124d2d8e 100644
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index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Security.Cryptography.X509Certificates/ref/Configurations.props
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index 05d3ab66c3d..d9095848079 100644
--- a/src/libraries/System.Security.Cryptography.X509Certificates/src/Configurations.props
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diff --git a/src/libraries/System.Security.Cryptography.X509Certificates/src/Resources/Strings.resx b/src/libraries/System.Security.Cryptography.X509Certificates/src/Resources/Strings.resx
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index f350faf8998..b098a67f398 100644
--- a/src/libraries/System.Security.Cryptography.X509Certificates/tests/Configurations.props
+++ b/src/libraries/System.Security.Cryptography.X509Certificates/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp-OSX;
diff --git a/src/libraries/System.Security.Cryptography.X509Certificates/tests/Resources/Strings.resx b/src/libraries/System.Security.Cryptography.X509Certificates/tests/Resources/Strings.resx
index 9a1f4bc6dd0..f83f60c15ad 100644
--- a/src/libraries/System.Security.Cryptography.X509Certificates/tests/Resources/Strings.resx
+++ b/src/libraries/System.Security.Cryptography.X509Certificates/tests/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Security.Cryptography.Xml/Directory.Build.props b/src/libraries/System.Security.Cryptography.Xml/Directory.Build.props
index 6a43eb658bf..c63e87ea233 100644
--- a/src/libraries/System.Security.Cryptography.Xml/Directory.Build.props
+++ b/src/libraries/System.Security.Cryptography.Xml/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.2.0</AssemblyVersion>
diff --git a/src/libraries/System.Security.Cryptography.Xml/pkg/System.Security.Cryptography.Xml.pkgproj b/src/libraries/System.Security.Cryptography.Xml/pkg/System.Security.Cryptography.Xml.pkgproj
index 84542341167..1e0c6cbb069 100644
--- a/src/libraries/System.Security.Cryptography.Xml/pkg/System.Security.Cryptography.Xml.pkgproj
+++ b/src/libraries/System.Security.Cryptography.Xml/pkg/System.Security.Cryptography.Xml.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.Security.Cryptography.Xml.csproj">
diff --git a/src/libraries/System.Security.Cryptography.Xml/ref/Configurations.props b/src/libraries/System.Security.Cryptography.Xml/ref/Configurations.props
index 9d81aad1a3e..a1df355a4df 100644
--- a/src/libraries/System.Security.Cryptography.Xml/ref/Configurations.props
+++ b/src/libraries/System.Security.Cryptography.Xml/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<PackageConfigurations>
netstandard;
diff --git a/src/libraries/System.Security.Cryptography.Xml/src/Configurations.props b/src/libraries/System.Security.Cryptography.Xml/src/Configurations.props
index 2ee0430b034..af214b7985b 100644
--- a/src/libraries/System.Security.Cryptography.Xml/src/Configurations.props
+++ b/src/libraries/System.Security.Cryptography.Xml/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<PackageConfigurations>
netstandard;
diff --git a/src/libraries/System.Security.Cryptography.Xml/src/Resources/Strings.resx b/src/libraries/System.Security.Cryptography.Xml/src/Resources/Strings.resx
index b0b1ef962dd..f575153ca4f 100644
--- a/src/libraries/System.Security.Cryptography.Xml/src/Resources/Strings.resx
+++ b/src/libraries/System.Security.Cryptography.Xml/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/System.Security.Cryptography.Xml/tests/Configurations.props b/src/libraries/System.Security.Cryptography.Xml/tests/Configurations.props
index ea9ea79f787..37db7ab791d 100644
--- a/src/libraries/System.Security.Cryptography.Xml/tests/Configurations.props
+++ b/src/libraries/System.Security.Cryptography.Xml/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Security.Permissions/Directory.Build.props b/src/libraries/System.Security.Permissions/Directory.Build.props
index 6a43eb658bf..c63e87ea233 100644
--- a/src/libraries/System.Security.Permissions/Directory.Build.props
+++ b/src/libraries/System.Security.Permissions/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.2.0</AssemblyVersion>
diff --git a/src/libraries/System.Security.Permissions/pkg/System.Security.Permissions.pkgproj b/src/libraries/System.Security.Permissions/pkg/System.Security.Permissions.pkgproj
index bb1ff256acb..6b60cfcb80c 100644
--- a/src/libraries/System.Security.Permissions/pkg/System.Security.Permissions.pkgproj
+++ b/src/libraries/System.Security.Permissions/pkg/System.Security.Permissions.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.Security.Permissions.csproj">
diff --git a/src/libraries/System.Security.Permissions/ref/Configurations.props b/src/libraries/System.Security.Permissions/ref/Configurations.props
index f7ef6445143..19357e41e84 100644
--- a/src/libraries/System.Security.Permissions/ref/Configurations.props
+++ b/src/libraries/System.Security.Permissions/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<PackageConfigurations>
netstandard;
diff --git a/src/libraries/System.Security.Permissions/src/Configurations.props b/src/libraries/System.Security.Permissions/src/Configurations.props
index 5983dcac0cd..a16dd35e40f 100644
--- a/src/libraries/System.Security.Permissions/src/Configurations.props
+++ b/src/libraries/System.Security.Permissions/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<PackageConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Security.Permissions/src/Resources/Strings.resx b/src/libraries/System.Security.Permissions/src/Resources/Strings.resx
index 28da01bfd35..5ce98baf59b 100644
--- a/src/libraries/System.Security.Permissions/src/Resources/Strings.resx
+++ b/src/libraries/System.Security.Permissions/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Security.Permissions/tests/Configurations.props b/src/libraries/System.Security.Permissions/tests/Configurations.props
index d9777d8275b..9521391d6cb 100644
--- a/src/libraries/System.Security.Permissions/tests/Configurations.props
+++ b/src/libraries/System.Security.Permissions/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Security.Principal.Windows/Directory.Build.props b/src/libraries/System.Security.Principal.Windows/Directory.Build.props
index 20a3fce93ad..b4a77348bc8 100644
--- a/src/libraries/System.Security.Principal.Windows/Directory.Build.props
+++ b/src/libraries/System.Security.Principal.Windows/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.2.0</AssemblyVersion>
diff --git a/src/libraries/System.Security.Principal.Windows/pkg/System.Security.Principal.Windows.pkgproj b/src/libraries/System.Security.Principal.Windows/pkg/System.Security.Principal.Windows.pkgproj
index 8ab1ae1cd2c..f64a5698945 100644
--- a/src/libraries/System.Security.Principal.Windows/pkg/System.Security.Principal.Windows.pkgproj
+++ b/src/libraries/System.Security.Principal.Windows/pkg/System.Security.Principal.Windows.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.Security.Principal.Windows.csproj">
diff --git a/src/libraries/System.Security.Principal.Windows/ref/Configurations.props b/src/libraries/System.Security.Principal.Windows/ref/Configurations.props
index 4ff7d98c80a..b9d0b2a59ec 100644
--- a/src/libraries/System.Security.Principal.Windows/ref/Configurations.props
+++ b/src/libraries/System.Security.Principal.Windows/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<PackageConfigurations>
netstandard;
diff --git a/src/libraries/System.Security.Principal.Windows/src/Configurations.props b/src/libraries/System.Security.Principal.Windows/src/Configurations.props
index d022d94deb5..92a27107378 100644
--- a/src/libraries/System.Security.Principal.Windows/src/Configurations.props
+++ b/src/libraries/System.Security.Principal.Windows/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<PackageConfigurations>
netstandard;
diff --git a/src/libraries/System.Security.Principal.Windows/src/Resources/Strings.resx b/src/libraries/System.Security.Principal.Windows/src/Resources/Strings.resx
index 110a230dbd7..adbd9d11a0a 100644
--- a/src/libraries/System.Security.Principal.Windows/src/Resources/Strings.resx
+++ b/src/libraries/System.Security.Principal.Windows/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Security.Principal.Windows/tests/Configurations.props b/src/libraries/System.Security.Principal.Windows/tests/Configurations.props
index 249c8c18b46..611acec17f5 100644
--- a/src/libraries/System.Security.Principal.Windows/tests/Configurations.props
+++ b/src/libraries/System.Security.Principal.Windows/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard-Windows_NT;
diff --git a/src/libraries/System.Security.Principal/Directory.Build.props b/src/libraries/System.Security.Principal/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Security.Principal/Directory.Build.props
+++ b/src/libraries/System.Security.Principal/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Security.Principal/ref/Configurations.props b/src/libraries/System.Security.Principal/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Security.Principal/ref/Configurations.props
+++ b/src/libraries/System.Security.Principal/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Security.Principal/src/Configurations.props b/src/libraries/System.Security.Principal/src/Configurations.props
index 4c3df1a7d7d..5a5ec98e434 100644
--- a/src/libraries/System.Security.Principal/src/Configurations.props
+++ b/src/libraries/System.Security.Principal/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
uapaot-Windows_NT;
diff --git a/src/libraries/System.Security.SecureString/Directory.Build.props b/src/libraries/System.Security.SecureString/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Security.SecureString/Directory.Build.props
+++ b/src/libraries/System.Security.SecureString/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Security.SecureString/ref/Configurations.props b/src/libraries/System.Security.SecureString/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Security.SecureString/ref/Configurations.props
+++ b/src/libraries/System.Security.SecureString/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Security.SecureString/src/Configurations.props b/src/libraries/System.Security.SecureString/src/Configurations.props
index a8910ef718c..cdeb74f110c 100644
--- a/src/libraries/System.Security.SecureString/src/Configurations.props
+++ b/src/libraries/System.Security.SecureString/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.Security.SecureString/tests/Configurations.props b/src/libraries/System.Security.SecureString/tests/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Security.SecureString/tests/Configurations.props
+++ b/src/libraries/System.Security.SecureString/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.ServiceModel.Syndication/Directory.Build.props b/src/libraries/System.ServiceModel.Syndication/Directory.Build.props
index 6c5c34bc9f4..75494287ea7 100644
--- a/src/libraries/System.ServiceModel.Syndication/Directory.Build.props
+++ b/src/libraries/System.ServiceModel.Syndication/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.1.0</AssemblyVersion>
diff --git a/src/libraries/System.ServiceModel.Syndication/pkg/System.ServiceModel.Syndication.pkgproj b/src/libraries/System.ServiceModel.Syndication/pkg/System.ServiceModel.Syndication.pkgproj
index 9ae5280b4e0..0c2963b3a40 100644
--- a/src/libraries/System.ServiceModel.Syndication/pkg/System.ServiceModel.Syndication.pkgproj
+++ b/src/libraries/System.ServiceModel.Syndication/pkg/System.ServiceModel.Syndication.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.ServiceModel.Syndication.csproj">
diff --git a/src/libraries/System.ServiceModel.Syndication/ref/Configurations.props b/src/libraries/System.ServiceModel.Syndication/ref/Configurations.props
index 787148ea6f8..2ddc576dadc 100644
--- a/src/libraries/System.ServiceModel.Syndication/ref/Configurations.props
+++ b/src/libraries/System.ServiceModel.Syndication/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<PackageConfigurations>
net461;
diff --git a/src/libraries/System.ServiceModel.Syndication/src/Configurations.props b/src/libraries/System.ServiceModel.Syndication/src/Configurations.props
index cbab41e88e7..9c43f42313b 100644
--- a/src/libraries/System.ServiceModel.Syndication/src/Configurations.props
+++ b/src/libraries/System.ServiceModel.Syndication/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<PackageConfigurations>
netstandard;
diff --git a/src/libraries/System.ServiceModel.Syndication/src/Resources/Strings.resx b/src/libraries/System.ServiceModel.Syndication/src/Resources/Strings.resx
index 1c4152ee2cb..883b7337de8 100644
--- a/src/libraries/System.ServiceModel.Syndication/src/Resources/Strings.resx
+++ b/src/libraries/System.ServiceModel.Syndication/src/Resources/Strings.resx
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/Configurations.props b/src/libraries/System.ServiceModel.Syndication/tests/Configurations.props
index 8b803e0772f..f5d3d45ffbf 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/Configurations.props
+++ b/src/libraries/System.ServiceModel.Syndication/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomDisjointItems.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomDisjointItems.xml
index 00c432b7306..3d853325e6f 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomDisjointItems.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomDisjointItems.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<feed xmlns="http://www.w3.org/2005/Atom">
+<feed xmlns="http://www.w3.org/2005/Atom">
<title type="text">dive into mark</title>
<subtitle type="html">
A &lt;em&gt;lot&lt;/em&gt; of effort
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomEntryTest.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomEntryTest.xml
index 281c039ad8a..9d38be48fdf 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomEntryTest.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomEntryTest.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<entry xmlns="http://www.w3.org/2005/Atom">
+<entry xmlns="http://www.w3.org/2005/Atom">
<id>uuid:43481a10-d881-40d1-adf2-99b438c57e21;id=1</id>
<title type="text">SyndicationFeed released for .net Core</title>
<updated>2017-10-11T11:25:55Z</updated>
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/absolute_rel.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/absolute_rel.xml
index 6e4fb5c2d21..3f2fc2aed2f 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/absolute_rel.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/absolute_rel.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: link with a "rel" which is an absolute IRI produces no error
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/alternate-no-content.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/alternate-no-content.xml
index ebe57bcb98d..709d6ccf5de 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/alternate-no-content.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/alternate-no-content.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: entry with an atom:link element with a rel attribute value of alternate but no atom:content element
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/author-at-entry-only.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/author-at-entry-only.xml
index 11a7493a684..eaeb3faa5fc 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/author-at-entry-only.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/author-at-entry-only.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a feed with one entry, which contains an atom:author element only at the entry level
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/author-at-feed-and-entry.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/author-at-feed-and-entry.xml
index cfc67ea2bf6..bec47f2696a 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/author-at-feed-and-entry.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/author-at-feed-and-entry.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a feed with one entry, both of which contains an atom:author element
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/author-at-feed-only.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/author-at-feed-only.xml
index 3382644539c..605932dbaae 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/author-at-feed-only.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/author-at-feed-only.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a feed with one entry, which contains an atom:author element only at the feed level
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/authorless-with-no-entries.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/authorless-with-no-entries.xml
index cb9a0b1a5f2..518dc9ad1a4 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/authorless-with-no-entries.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/authorless-with-no-entries.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a feed with two atom:entry elements with the same atom:id and same atom:updated values produces a warning.
Expect: !MissingElement{parent:feed,element:author}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/authorless-with-one-entry.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/authorless-with-one-entry.xml
index 507b09f237e..983b293e434 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/authorless-with-one-entry.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/authorless-with-one-entry.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a feed with one entry, neither of which contains an atom:author element
Expect: MissingElement{element:author,parent:entry}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-entry-ext.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-entry-ext.xml
index de4adb8bcd6..6c9ba21e1d4 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-entry-ext.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-entry-ext.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Whitespace is not permitted in uris
Expect: InvalidUriChar{parent:entry,element:scheme}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-feed-ext.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-feed-ext.xml
index ef6dc706602..cfe964d7107 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-feed-ext.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-feed-ext.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Whitespace is not permitted in uris
Expect: InvalidUriChar{parent:entry,element:scheme}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-feed.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-feed.xml
index 3a254fde244..4e12beb8f3b 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-feed.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-feed.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Whitespace is not permitted in uris
Expect: InvalidUriChar{parent:entry,element:scheme}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-label-escaped-html.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-label-escaped-html.xml
index 630af3a29ec..da8e0b1b080 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-label-escaped-html.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-label-escaped-html.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: category with a label that appears to contain escaped HTML produces a warning
Expect: ContainsHTML{element:category}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-no-label.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-no-label.xml
index a7095101601..297c7ae028f 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-no-label.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-no-label.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: category without a label produces no error
Expect: !MissingAttribute{attr:label,element:category}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-no-scheme.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-no-scheme.xml
index fa83f859193..ae9a7ee0003 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-no-scheme.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-no-scheme.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: category without a scheme produces no error
Expect: !MissingAttribute{attr:scheme,element:category}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-scheme-invalid-iri.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-scheme-invalid-iri.xml
index 7984809eee6..151207f948c 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-scheme-invalid-iri.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-scheme-invalid-iri.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: category with a scheme attribute that is not a valid IRI produces an error
Expect: InvalidUriChar{element:scheme,parent:entry}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-scheme-rel-iri.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-scheme-rel-iri.xml
index bd4c8af1f82..6a88582973d 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-scheme-rel-iri.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/category-scheme-rel-iri.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: category with a scheme attribute that is not a valid IRI produces an error
Expect: InvalidFullLink{element:scheme,parent:entry}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/contains-email.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/contains-email.xml
index e8baf55b0a2..c5372395233 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/contains-email.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/contains-email.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: name containing an email address produces a warning
Expect: ContainsEmail{element:name,parent:author}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-application-xthml.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-application-xthml.xml
index 6c05e5383c5..39e9a4c3e9c 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-application-xthml.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-application-xthml.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: usage of application/xhtml+xml to describe an xhtml fragment
Expect: HtmlFragment{element:content}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-base64-no-summary.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-base64-no-summary.xml
index d1668e34cd4..3e05e2947ab 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-base64-no-summary.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-base64-no-summary.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: entry contains content that is encoded in Base64 but without a summary
Expect: MissingSummary{element:entry,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-jpeg-invalid-base64.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-jpeg-invalid-base64.xml
index 1c8251455ba..bce99f37214 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-jpeg-invalid-base64.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-jpeg-invalid-base64.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: content with a type of jpeg and a value that is not valid base64 produces an error
Expect: NotBase64{element:content,parent:entry}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-jpeg-valid-base64.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-jpeg-valid-base64.xml
index b2be061515b..ac5e5710b5f 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-jpeg-valid-base64.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-jpeg-valid-base64.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: content with a type of jpeg and a value that is valid base64 produces no error
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-no-alternate.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-no-alternate.xml
index 22b306dd311..fa78cbcaf87 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-no-alternate.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-no-alternate.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: entry with an atom:content element but no atom:link element with a rel attribute value of alternate
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-no-type-escaped-html.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-no-type-escaped-html.xml
index 6aaa6c14887..29a0e5be494 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-no-type-escaped-html.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-no-type-escaped-html.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: content with no type attribute and a value containing escaped html produces a warning
Expect: ContainsUndeclaredHTML{parent:entry,element:content}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-plain-with-children.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-plain-with-children.xml
index aad16e30818..ef241792f23 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-plain-with-children.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-plain-with-children.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: content with a type of plain and children elements produces an error
Expect: UndefinedElement{parent:content}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-no-summary.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-no-summary.xml
index d2779b16a08..74febce71fc 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-no-summary.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-no-summary.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: entry with an atom:content that has a src attribute but with no summary
Expect: MissingSummary{element:entry,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-no-type-no-error.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-no-type-no-error.xml
index fdf8dda37e8..004d2cb01da 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-no-type-no-error.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-no-type-no-error.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: content with a src attribute and no type attribute produces a warning
Expect: !InvalidMIMEType
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-no-type.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-no-type.xml
index c4613d7a22a..01198304b71 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-no-type.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-no-type.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: content with a src attribute and no type attribute produces a warning
Expect: MissingTypeAttr{element:content,attr:type,parent:entry}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-relative-ref.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-relative-ref.xml
index e083833efe1..bbccd6bf609 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-relative-ref.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-relative-ref.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: content with a src attribute that is a relative IRI reference produce no error
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-type-html.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-type-html.xml
index 5f8e9fa39d4..b39dc56161e 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-type-html.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-type-html.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: content with a src attribute and a type attribute of html produces an error
Expect: InvalidValue{element:content,attr:type,parent:entry}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-type-text-html.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-type-text-html.xml
index 8f7db7ae6be..5c599b1177c 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-type-text-html.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-type-text-html.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: content with a src attribute and a type attribute of text/html produces no error
Expect: !HtmlFragment{element:content,parent:entry}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-type-text.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-type-text.xml
index 6cf3bedaac4..91743d0314a 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-type-text.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-type-text.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: content with a src attribute and a type attribute of text produces an error
Expect: InvalidValue{element:content,attr:type,parent:entry}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-type-xhtml.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-type-xhtml.xml
index 525e3c9959f..2a12b45a1c3 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-type-xhtml.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src-type-xhtml.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: content with a src attribute and a type attribute of xhtml produces an error
Expect: InvalidValue{element:content,attr:type,parent:entry}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src.xml
index d828eedc62e..2b14c70a849 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-src.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Remote content should produce no NotBlank warning
Expect: !NotBlank
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-text-html.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-text-html.xml
index 8a61043bf69..4c8158e22ed 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-text-html.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-text-html.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: usage of text/html to describe an html fragment
Expect: HtmlFragment{element:content}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-xhtml-escaped.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-xhtml-escaped.xml
index a4c659b377c..3d67c6b4f73 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-xhtml-escaped.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-xhtml-escaped.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: xhtml content value containing only escaped html produces a warning
Expect: NotInline{parent:entry,element:content}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-xhtml-mixed.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-xhtml-mixed.xml
index edfa7083273..5807d0d7558 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-xhtml-mixed.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-xhtml-mixed.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: xhtml content with elements and escaped text
Expect: !NotInline{parent:entry,element:content}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-xhtml-no-xhtml-div.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-xhtml-no-xhtml-div.xml
index 34839e8361f..5f1b562d06c 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-xhtml-no-xhtml-div.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-xhtml-no-xhtml-div.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: content with a type of xhtml and an immediate child elements other than xhtml:div produces an error
Expect: MissingXhtmlDiv{parent:entry,element:content}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-xhtml-notmarkup.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-xhtml-notmarkup.xml
index 3d2d399756c..9946527deda 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-xhtml-notmarkup.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-xhtml-notmarkup.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: xhtml content value containing only escaped non-html produces no warning
Expect: !NotInline{parent:entry,element:content}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-xhtml-text-children.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-xhtml-text-children.xml
index de1f4f4bfe2..e02611a7605 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-xhtml-text-children.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/content-xhtml-text-children.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: content with a "type" of "xhtml" and child text nodes produces an error
Expect: MissingXhtmlDiv{parent:entry,element:content}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/duplicate-entries.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/duplicate-entries.xml
index 46bb9dbe96b..afa7541eade 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/duplicate-entries.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/duplicate-entries.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a feed with two atom:entry elements with the same atom:id value produces a warning.
Expect: DuplicateEntries
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/email-rss20-style.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/email-rss20-style.xml
index 5dfaacf1d47..02f4e0bdb6b 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/email-rss20-style.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/email-rss20-style.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: RSS 2.0 style email addresses
Expect: InvalidAddrSpec{element:email,parent:contributor}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/email-with-name.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/email-with-name.xml
index 9ae68293e3d..9d337f62bef 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/email-with-name.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/email-with-name.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: RFC 2822 "name-addr" style email address
Expect: InvalidAddrSpec{element:email,parent:contributor}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/email-with-plus.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/email-with-plus.xml
index 2e2fa2be7f8..95c408a29ef 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/email-with-plus.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/email-with-plus.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: email with a plus sign
Expect: ValidContact{element:email,parent:contributor}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/empty-content.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/empty-content.xml
index c5dcf3187d9..6bf963567a9 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/empty-content.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/empty-content.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: an entry with an empty atom:content element produces a warning
Expect: NotBlank{parent:entry,element:content}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/empty-title.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/empty-title.xml
index a4a4b42f074..cde20117877 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/empty-title.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/empty-title.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: an entry with an empty atom:title produces a warning
Expect: NotBlank{parent:entry,element:title}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/escaped_text.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/escaped_text.xml
index 6eba437d28c..b64c1989004 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/escaped_text.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/escaped_text.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: escaped html marked at text
Expect: ContainsUndeclaredHTML{element:summary}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/example_html_title.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/example_html_title.xml
index 07e3ce3a195..9b7c62a4719 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/example_html_title.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/example_html_title.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Example atom:title with html content
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/example_text_title.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/example_text_title.xml
index e36ee87a77a..64cefba51ce 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/example_text_title.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/example_text_title.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Example atom:title with text content
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/example_xhtml_summary1.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/example_xhtml_summary1.xml
index 96843a9a386..dfe31a8ffea 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/example_xhtml_summary1.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/example_xhtml_summary1.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Example atom:summary with xhtml content
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/example_xhtml_summary2.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/example_xhtml_summary2.xml
index aed3b201f38..a49300ecfa4 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/example_xhtml_summary2.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/example_xhtml_summary2.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Example atom:summary with xhtml content
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/example_xhtml_summary3.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/example_xhtml_summary3.xml
index 7a818f90f01..642f3234540 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/example_xhtml_summary3.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/example_xhtml_summary3.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Example atom:summary with xhtml content
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/extension-unknown-noerror.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/extension-unknown-noerror.xml
index 2a594bd0730..b43d0f331db 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/extension-unknown-noerror.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/extension-unknown-noerror.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Unknown extension elements in feed and entry should not affect validity
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/extensive-noerror.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/extensive-noerror.xml
index f9f90d983c7..98950d3eb9d 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/extensive-noerror.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/extensive-noerror.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: No errors should be produced by the extensive feed
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/extensive-nowarn.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/extensive-nowarn.xml
index 012703232f3..3f245642211 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/extensive-nowarn.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/extensive-nowarn.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: No errors should be produced by the extensive feed
Expect: !Warning
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/generator-escaped-html.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/generator-escaped-html.xml
index 1aff7e9d121..deaf94ec08d 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/generator-escaped-html.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/generator-escaped-html.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: generator with text that appears to contain escaped HTML produces a warning
Expect: ContainsHTML{element:generator,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/generator-no-text.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/generator-no-text.xml
index 3c7a8186db3..ece3f7f04b1 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/generator-no-text.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/generator-no-text.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: generator without text produces a warning
Expect: NotBlank{element:generator,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/generator_relative_ref.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/generator_relative_ref.xml
index 7fb3bdaa50e..6c7d033b256 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/generator_relative_ref.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/generator_relative_ref.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: icon that is a relative IRI reference produce no error
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/icon_invalid_uri.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/icon_invalid_uri.xml
index 5d2b50fdd4e..7be647210d1 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/icon_invalid_uri.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/icon_invalid_uri.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: icon with content that is not a valid IRI reference produces an error
Expect: InvalidLink{element:icon,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/icon_relative_ref.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/icon_relative_ref.xml
index 505e886b648..b643654e488 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/icon_relative_ref.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/icon_relative_ref.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: icon that is a relative IRI reference produce no error
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-dot-segments.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-dot-segments.xml
index 9110900c264..c03ced626ff 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-dot-segments.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-dot-segments.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: id with dot-segments in path produces a warning
Expect: NonCanonicalURI{element:id,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-empty-fragment-id.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-empty-fragment-id.xml
index d50b6ce020b..eb799266fa5 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-empty-fragment-id.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-empty-fragment-id.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: id with an empty fragment identifier produces no warning
Expect: !NonCanonicalURI
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-empty-path.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-empty-path.xml
index 495591fb4ab..59add411c0a 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-empty-path.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-empty-path.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: id with an empty path for schemes like http produces a warning
Expect: NonCanonicalURI{element:id,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-empty-query.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-empty-query.xml
index 0aaaa042ba7..71890666835 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-empty-query.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-empty-query.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: id with an empty query produces no warning
Expect: !NonCanonicalURI
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-explicit-authority.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-explicit-authority.xml
index 71832dbbc22..1425220ae86 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-explicit-authority.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-explicit-authority.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: id with an explicit authority equivalent to the default produces a warning
Expect: NonCanonicalURI{element:id,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-explicit-default-port.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-explicit-default-port.xml
index 9ecf986f2fc..91a1f2933ea 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-explicit-default-port.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-explicit-default-port.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: id whith an explicitly specified default port produces a warning
Expect: NonCanonicalURI{element:id,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-host-uppercase.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-host-uppercase.xml
index 883326cd3ca..d7d4edd6915 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-host-uppercase.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-host-uppercase.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: id with a host in uppercase characters produces a warning
Expect: NonCanonicalURI{element:id,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-noniana.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-noniana.xml
index 041c9038276..3a510bd0e09 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-noniana.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-noniana.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: id which uses a non-IANA registered scheme produces a warning
Expect: SchemeNotIANARegistered{element:id,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-not-uri.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-not-uri.xml
index 590dcec456d..761f0d620f5 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-not-uri.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-not-uri.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: id which is not an IRI produces an error
Expect: InvalidLink{element:id,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-percent-encoded-lower.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-percent-encoded-lower.xml
index 4069fc301ec..aa9bffef0ae 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-percent-encoded-lower.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-percent-encoded-lower.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: id with percent-encoding using lowercase characters produces a warning
Expect: NonCanonicalURI{element:id,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-percent-encoded.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-percent-encoded.xml
index fcbcd8094a2..26137c9c72e 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-percent-encoded.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-percent-encoded.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: id with percent-encoding unnecessarily produces a warning
Expect: NonCanonicalURI{element:id,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-relative-uri.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-relative-uri.xml
index 1f293dcb6fc..9236ac6c974 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-relative-uri.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-relative-uri.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: id which is a relative IRI produces an error
Expect: InvalidFullLink{element:id,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-uppercase-scheme.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-uppercase-scheme.xml
index 5e80c8d5000..03e5ff0aae7 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-uppercase-scheme.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-uppercase-scheme.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: id with a scheme in uppercase characters produces a warning
Expect: NonCanonicalURI{element:id,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-valid-tag-uris.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-valid-tag-uris.xml
index 994708349dc..6fe8144ddce 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-valid-tag-uris.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/id-valid-tag-uris.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Valid Tag URIs, according to RFC 4151, should not produce errors
Expect: !InvalidTAG
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-attr-order.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-attr-order.xml
index 48b7120a153..04c3e8a3220 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-attr-order.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-attr-order.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: The order of attributes within a start-tag is not significant.
Expect: DuplicateAtomLink{parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-char-ref.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-char-ref.xml
index 78ad80cf00b..5f1e8ff333a 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-char-ref.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-char-ref.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Whether characters are represented by character references or not is not significant.
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-element-whitespace.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-element-whitespace.xml
index 9a05e46ccff..2721c372cbc 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-element-whitespace.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-element-whitespace.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: White space within start-tags (other than significant white space in attribute values) and end-tags is not significant.
Expect: DuplicateAtomLink{parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-empty1.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-empty1.xml
index f552c6a1c5e..7754ea534bb 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-empty1.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-empty1.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Empty title element
Expect: NotBlank{element:title,parent:entry}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-empty2.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-empty2.xml
index a5687bf3262..1e7f3028b9f 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-empty2.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-empty2.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Empty title element
Expect: NotBlank{element:title,parent:entry}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-quote-single.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-quote-single.xml
index 8b9044ace5e..301915056ad 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-quote-single.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/infoset-quote-single.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: The kind of quotation marks (single or double) used to quote attribute values is not significant.
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/invalid-email.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/invalid-email.xml
index 3c658560dd3..6b9b0fa6a88 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/invalid-email.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/invalid-email.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: contributor with an atom:email that is not valid
Expect: InvalidAddrSpec{element:email,parent:contributor}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/invalid-uri.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/invalid-uri.xml
index 4d0fcc699bf..fe1b6d1d81b 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/invalid-uri.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/invalid-uri.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: contributor with an atom:uri that is not a valid IRI reference
Expect: InvalidLink{element:uri,parent:contributor}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/invalid-xml-base.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/invalid-xml-base.xml
index e89d653c322..7431f756a64 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/invalid-xml-base.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/invalid-xml-base.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: xml base with an invalid iri
Expect: InvalidUriChar{element:xml:base}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/invalid-xml-lang.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/invalid-xml-lang.xml
index 70c065b5d1c..82e8338410b 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/invalid-xml-lang.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/invalid-xml-lang.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: invalid xml:lang an error
Expect: InvalidLanguage{element:xml:lang}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/license-noerror.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/license-noerror.xml
index 9a0a1968dc2..30ea5eb0231 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/license-noerror.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/license-noerror.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: creativeCommons:license element
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-extensions.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-extensions.xml
index 2e87e38ad71..a025258f8cf 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-extensions.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-extensions.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Foreign markup as a child of an atom:link element
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-full-uri.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-full-uri.xml
index 16c4b6db4ef..ba43009b33d 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-full-uri.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-full-uri.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: entry with an atom:link with a rel attribute value specifying an unrecognized fully qualified IRI
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-href-relative.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-href-relative.xml
index 1405bbbe3ed..c2e7c6eeb22 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-href-relative.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-href-relative.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: link with a href link-href-invalid.xml link-no-href.xml
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-hreflang-invalid-language.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-hreflang-invalid-language.xml
index a84b6cb5373..7656fb1b508 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-hreflang-invalid-language.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-hreflang-invalid-language.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: link with a hreflang attribute that is not a language tag produces an error
Expect: InvalidLanguage{element:link,parent:entry}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-rel-full.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-rel-full.xml
index c3bfc5a4fc9..8340ca8f257 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-rel-full.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-rel-full.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a feed with an atom:link with a rel attribute value specifying an unrecognized fully qualified IRI
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-rel-iana.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-rel-iana.xml
index f7f9ea1f233..bfbda5f2637 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-rel-iana.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-rel-iana.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: link with a rel with iana org
Expect: !MissingSelf
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-rel-isegment-nz-nc.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-rel-isegment-nz-nc.xml
index 7ef2c9f41ba..0b931e69b1e 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-rel-isegment-nz-nc.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-rel-isegment-nz-nc.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: link with a rel which matches isegment-nz-nc produces no error
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-rel-relative.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-rel-relative.xml
index 1b9614c028e..39a166afa6c 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-rel-relative.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-rel-relative.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: link with a rel which is a relative IRI but not a isegment-nz-nc produces an error
Expect: UnregisteredAtomLinkRel{element:link,parent:entry}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-same-rel-different-types.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-same-rel-different-types.xml
index 10029ca8bd5..7d1e9a3d618 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-same-rel-different-types.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-same-rel-different-types.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: entry with two atom:link elements with a rel attribute value of alternate that has the differing types
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-same-rel-type-different-hreflang.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-same-rel-type-different-hreflang.xml
index 9743a8e3b07..003f2e56773 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-same-rel-type-different-hreflang.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-same-rel-type-different-hreflang.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: entry with two atom:link elements with a rel attribute value of alternate that has the same type but differing hreflang attribute values
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-same-rel-type-hreflang.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-same-rel-type-hreflang.xml
index f3885ec9b20..6ebf57b410b 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-same-rel-type-hreflang.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-same-rel-type-hreflang.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: entry with two atom:link elements with a rel attribute value of alternate that has the same type and hreflang attribute values
Expect: DuplicateAtomLink{element:link,parent:entry}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-same-rel-type-no-hreflang.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-same-rel-type-no-hreflang.xml
index c7a30d86398..3a7dd807fb7 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-same-rel-type-no-hreflang.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-same-rel-type-no-hreflang.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: entry with two atom:link elements with a rel attribute value of alternate that has the same type and no hreflang attribute values
Expect: DuplicateAtomLink{element:link,parent:entry}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-title-with-badchars.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-title-with-badchars.xml
index d029a61e5d6..69204d2b8f8 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-title-with-badchars.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-title-with-badchars.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: link with a title attribute which appears to contain HTML produces a warning
Expect: BadCharacters{element:title,parent:link}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-title-with-html.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-title-with-html.xml
index 53e9f2342a8..81efe16c883 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-title-with-html.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-title-with-html.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: link with a title attribute which appears to contain HTML produces a warning
Expect: ContainsHTML{element:link,parent:entry}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-type-invalid-mime.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-type-invalid-mime.xml
index dfdbab0be1f..923b10b5d9c 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-type-invalid-mime.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-type-invalid-mime.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: link with a type attribute which does not match the syntax of a MIME media type produces an error
Expect: InvalidMIMEType{element:link,parent:entry}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-type-parameters.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-type-parameters.xml
index a0a0e606dd5..813028bfe9b 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-type-parameters.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/link-type-parameters.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: link type with parameters produces no error
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/logo_relative_ref.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/logo_relative_ref.xml
index 47549cbab99..d4707d9edee 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/logo_relative_ref.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/logo_relative_ref.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: logo that is a relative IRI reference produce no error
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/missing-id-source.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/missing-id-source.xml
index 2f8a4fe1771..7a6bca5a7b0 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/missing-id-source.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/missing-id-source.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a source with zero atom:id elements produces a warning
Expect: MissingSourceElement{element:id,parent:source}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/missing-self.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/missing-self.xml
index afe7d4abe6c..ef1cd09cb01 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/missing-self.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/missing-self.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a feed without an atom:link element with a rel attribute value of self produces a warning
Expect: MissingSelf{element:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/missing-title-source.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/missing-title-source.xml
index b9f25b13be7..0dfc9f5e392 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/missing-title-source.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/missing-title-source.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a source with zero atom:title elements produces a warning
Expect: MissingSourceElement{element:title,parent:source}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/missing-updated-source.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/missing-updated-source.xml
index d5174081119..f0c05838ce0 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/missing-updated-source.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/missing-updated-source.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: source with zero atom:updated elements produces a warning
Expect: MissingSourceElement{element:updated,parent:source}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/missing_xhtml_ns.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/missing_xhtml_ns.xml
index 244e898ecca..10e0804386f 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/missing_xhtml_ns.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/missing_xhtml_ns.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Example atom:summary with xhtml content
Expect: MissingNamespace{element:b}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-alternates-differing-source.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-alternates-differing-source.xml
index 0c2a37f8cd2..fb4cc67aa81 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-alternates-differing-source.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-alternates-differing-source.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a source with two one atom:link elements with a rel attribute value of "alternate", but with different type and hreflang attribute values produces no error
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-alternates-differing.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-alternates-differing.xml
index a23a76797b1..05b038873e7 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-alternates-differing.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-alternates-differing.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a feed with two one atom:link elements with a rel attribute value of alternate, but with different type and hreflang attribute value
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-alternates-matching-source.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-alternates-matching-source.xml
index 0f4c0a88df4..59fdcdb2d0b 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-alternates-matching-source.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-alternates-matching-source.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a source with two atom:link elements with a rel attribute value of "alternate" with the same type and hreflang attribute value produces an error
Expect: DuplicateAtomLink{parent:source}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-alternates-matching.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-alternates-matching.xml
index a8628cdead7..5031e9b2c31 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-alternates-matching.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-alternates-matching.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a feed with two atom:link elements with a rel attribute value of alternate and with the same type and hreflang attribute value
Expect: DuplicateAtomLink{parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-authors-source.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-authors-source.xml
index dc2acc84970..6da6ca2ee29 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-authors-source.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-authors-source.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a source with two atom:author elements produces no error
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-authors.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-authors.xml
index 74a49abfbc5..9ef09acb39a 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-authors.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-authors.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a feed with two atom:author elements
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-categories-entry.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-categories-entry.xml
index 4765c92eeb2..262acd5b0b3 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-categories-entry.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-categories-entry.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: entry with multiple atom:category elements
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-categories-source.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-categories-source.xml
index e4a289db4b6..9605d214d9f 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-categories-source.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-categories-source.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a source with two atom:category elements produces no error
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-categories.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-categories.xml
index 3c65c44886c..2a9a5ba78e8 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-categories.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-categories.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a feed with two atom:category elements
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-contributors-entry.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-contributors-entry.xml
index 449e9cf746b..4c67ce8a28c 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-contributors-entry.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-contributors-entry.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: entry with multiple atom:contributor elements
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-contributors-source.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-contributors-source.xml
index 28cf9c4bade..396e8be15b2 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-contributors-source.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-contributors-source.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a source with two atom:contributor elements produces no error
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-contributors.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-contributors.xml
index 4c3fed8e6e4..63acaf2d082 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-contributors.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-contributors.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a feed with two atom:contributor elements
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-icons-source.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-icons-source.xml
index dc3f9f63681..15774bb8796 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-icons-source.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-icons-source.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a source with two atom:icon elements produces an error
Expect: DuplicateElement{element:icon,parent:source}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-icons.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-icons.xml
index 9af1cb57288..bb17c5110bd 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-icons.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-icons.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a feed with two atom:icon elements
Expect: DuplicateElement{element:icon,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-related-matching.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-related-matching.xml
index fb35f202758..dd2ece1df95 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-related-matching.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/multiple-related-matching.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a feed with two atom:link elements with a rel attribute value of related and with the same type and hreflang attribute value
Expect: !DuplicateAtomLink{parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/no-content-or-alternate.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/no-content-or-alternate.xml
index ef643218226..93d98c497f7 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/no-content-or-alternate.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/no-content-or-alternate.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: entry with neither an atom:link element with a rel attribute value of alternate nor an atom:content element
Expect: MissingContentOrAlternate{element:entry,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/no-content-or-summary.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/no-content-or-summary.xml
index d5023ec5d30..af1b2542652 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/no-content-or-summary.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/no-content-or-summary.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: an entry with no atom:content or atom:summary produces a warning
Expect: MissingTextualContent{element:entry,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/no-name.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/no-name.xml
index 3b640d152e7..547a3b4baff 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/no-name.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/no-name.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: contributor without an atom:name produces an error
Expect: MissingElement{element:name,parent:contributor}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/prefixed-namespace.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/prefixed-namespace.xml
index 242e385c444..861d9bf6b97 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/prefixed-namespace.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/prefixed-namespace.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Mising Namespace on feed element
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/rdf-extensions.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/rdf-extensions.xml
index 796ac6373db..d25b52c5ebb 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/rdf-extensions.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/rdf-extensions.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: RDF extensions to Atom
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/rel-colon.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/rel-colon.xml
index 86c213bdc93..2de2d1eb7c1 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/rel-colon.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/rel-colon.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: ValidXMLBase
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/related-same-rel-type-hreflang.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/related-same-rel-type-hreflang.xml
index 865c77e6389..da05253b3f0 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/related-same-rel-type-hreflang.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/related-same-rel-type-hreflang.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: entry with two atom:link elements with a rel attribute value of related that has the same type and hreflang attribute values
Expect: !DuplicateAtomLink{element:link,parent:entry}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/relative-ref.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/relative-ref.xml
index 7e2a9732014..8aefb60f0bc 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/relative-ref.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/relative-ref.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: contributor with an atom:uri that is a relative IRI reference
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/rights-text-with-escaped-html.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/rights-text-with-escaped-html.xml
index 07a81cb019d..328e3a79417 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/rights-text-with-escaped-html.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/rights-text-with-escaped-html.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: rights with a type of text but appears to include escaped html produces a warning
Expect: ContainsUndeclaredHTML{element:rights,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/rights-xhtml-no-xmldiv.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/rights-xhtml-no-xmldiv.xml
index 3ec7421c777..e5ebf544a8d 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/rights-xhtml-no-xmldiv.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/rights-xhtml-no-xmldiv.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Rights with a type of xhtml needs to include an xhtml:div
Expect: MissingXhtmlDiv{element:rights,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/self-vs-alternate.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/self-vs-alternate.xml
index fd729f61652..f6264d187b0 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/self-vs-alternate.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/self-vs-alternate.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Self-rel referencing a non-Atom representation
Expect: SelfNotAtom
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/subtitle-blank.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/subtitle-blank.xml
index 68c36835152..e803229901b 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/subtitle-blank.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/subtitle-blank.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a subtitle that is blank produces a warning
Expect: NotBlank{element:subtitle,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/summary-content-base64.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/summary-content-base64.xml
index f673ea35c06..7193411eb4e 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/summary-content-base64.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/summary-content-base64.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: entry contains content that is encoded in Base64 with a summary
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/summary-content-src.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/summary-content-src.xml
index dfee56a8526..1789b4d8e05 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/summary-content-src.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/summary-content-src.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: entry with an atom:summary and an atom:content that has a src attribute
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/title-blank.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/title-blank.xml
index d2860515aa7..fed11c083a6 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/title-blank.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/title-blank.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a subtitle that is blank produces a warning
Expect: NotBlank{element:title,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/trackback-about-entry.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/trackback-about-entry.xml
index 0feb736f712..47489658cdf 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/trackback-about-entry.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/trackback-about-entry.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Valid trackback:about elements should be permitted on entries
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/trackback-ping-entry.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/trackback-ping-entry.xml
index 989a0247c5c..01da7acbd9b 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/trackback-ping-entry.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/trackback-ping-entry.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Valid trackback:ping elements should be permitted on entries
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/trackback-ping-outside-entry.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/trackback-ping-outside-entry.xml
index e1b5b8ba2b7..f25f8a4967e 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/trackback-ping-outside-entry.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/trackback-ping-outside-entry.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: trackback:ping is only defined for feed entries
Expect: UndefinedElement{parent:feed,element:trackback:ping}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-html.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-html.xml
index 380c78907d1..d96bc47c53a 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-html.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-html.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: content with type of html produces no error
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-multipart-alternative.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-multipart-alternative.xml
index 69fd026e350..68ba594e733 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-multipart-alternative.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-multipart-alternative.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: content with a valid composite mime type produces an error
Expect: InvalidMIMEType{element:content,parent:entry}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-text-html.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-text-html.xml
index d9af21d7589..b5dc9bb2510 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-text-html.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-text-html.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: content with a valid non-composite mime type produces no error
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-text.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-text.xml
index ef1fc799967..8fbc5623be1 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-text.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-text.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: content with type of text produces no error
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-xhtml.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-xhtml.xml
index 559cfffa669..4ef880da35d 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-xhtml.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-xhtml.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: content with type of xhtml produces no error
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-xml.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-xml.xml
index ac685c42e05..f055da0ade0 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-xml.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/type-xml.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: content with type of xml produces an error
Expect: InvalidMIMEType{element:content,parent:entry}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/undeterminable-vocabulary.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/undeterminable-vocabulary.xml
index 8cddf8303d7..0d90e961a31 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/undeterminable-vocabulary.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/undeterminable-vocabulary.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Unknown extension elements without a namespace get a warning
Expect: UndeterminableVocabulary{element:simple-value}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/undeterminable-vocabulary2.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/undeterminable-vocabulary2.xml
index b73e7107d05..3334543f3b2 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/undeterminable-vocabulary2.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/undeterminable-vocabulary2.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Unknown extension elements without a namespace get a warning
Expect: UndeterminableVocabulary{element:simple-value}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/undeterminable-vocabulary3.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/undeterminable-vocabulary3.xml
index f3c2921937c..cad6584834f 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/undeterminable-vocabulary3.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/undeterminable-vocabulary3.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Extension elements without a namespace in unknown namespace produce no warning
Expect: !UndeterminableVocabulary
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/unregistered-rel.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/unregistered-rel.xml
index 26d7a3d0492..11ff5839410 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/unregistered-rel.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/unregistered-rel.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: link with a "rel" which matches isegment-nz-nc but is not in the IANA registry produces an error
Expect: UnregisteredAtomLinkRel{value:service.post,element:link,parent:feed}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/updated-example3.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/updated-example3.xml
index 8a9b3da2d6a..6c1207389c1 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/updated-example3.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/updated-example3.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Updated example from the spec
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/valid-xml-base-iri.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/valid-xml-base-iri.xml
index 942a4f97b1b..4536b8817d8 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/valid-xml-base-iri.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/valid-xml-base-iri.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: xml base with an valid iri
Expect: !InvalidIRI{element:xml:base}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-author-uri.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-author-uri.xml
index 6b48c6f44be..a4eaf2a70a7 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-author-uri.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-author-uri.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Whitespace is not permitted in uris
Expect: UnexpectedWhitespace{parent:author,element:uri}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-category-scheme.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-category-scheme.xml
index 3112e317465..3f94caf2a2b 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-category-scheme.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-category-scheme.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Whitespace is not permitted in uris
Expect: InvalidUriChar{parent:entry,element:scheme}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-content-src.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-content-src.xml
index bd03af8848a..8238cc5e0d1 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-content-src.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-content-src.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Whitespace is not permitted in uris
Expect: InvalidUriChar{parent:entry,element:content,attr:src}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-entry-id.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-entry-id.xml
index cbcda6160e5..ee4789f1484 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-entry-id.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-entry-id.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Whitespace is not permitted in uris
Expect: UnexpectedWhitespace{parent:entry,element:id}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-entry-published.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-entry-published.xml
index efb613d7240..f690457ddda 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-entry-published.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-entry-published.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Whitespace is not permitted in dates
Expect: UnexpectedWhitespace{parent:entry,element:published}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-entry-updated.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-entry-updated.xml
index f11a8565e03..6d696048a9c 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-entry-updated.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-entry-updated.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Whitespace is not permitted in dates
Expect: UnexpectedWhitespace{parent:entry,element:updated}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-feed-icon.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-feed-icon.xml
index 607153f9301..a2d7cce7d81 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-feed-icon.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-feed-icon.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Whitespace is not permitted in uris
Expect: UnexpectedWhitespace{parent:feed,element:icon}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-feed-id.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-feed-id.xml
index c6b8189d5c2..d55a853cddd 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-feed-id.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-feed-id.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Whitespace is not permitted in uris
Expect: UnexpectedWhitespace{parent:feed,element:id}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-feed-logo.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-feed-logo.xml
index 755ce9992d2..6f6438e0194 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-feed-logo.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-feed-logo.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Whitespace is not permitted in uris
Expect: UnexpectedWhitespace{parent:feed,element:logo}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-feed-updated.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-feed-updated.xml
index 6f2f122c195..eea7c0abb7a 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-feed-updated.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-feed-updated.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Whitespace is not permitted in dates
Expect: UnexpectedWhitespace{parent:feed,element:updated}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-generator-uri.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-generator-uri.xml
index 8bf0d4b4a18..b71e41bc884 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-generator-uri.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-generator-uri.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Whitespace is not permitted in uris
Expect: InvalidUriChar{parent:feed,element:generator,attr:uri}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-link-href.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-link-href.xml
index 7e040ba37e8..5a674d192d9 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-link-href.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-link-href.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Whitespace is not permitted in uris
Expect: InvalidLink{parent:feed,element:link}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-link-rel.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-link-rel.xml
index 832b93de9c6..a0e3b6ae2c2 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-link-rel.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/ws-link-rel.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Whitespace is not permitted in uris
Expect: UnregisteredAtomLinkRel{parent:feed,element:link}
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xhtml-extensions.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xhtml-extensions.xml
index aa3e6694983..0a0fba93e60 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xhtml-extensions.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xhtml-extensions.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: XHTML extensions to Atom
Expect: MisplacedXHTMLContent
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xml-base-ambiguous.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xml-base-ambiguous.xml
index a876db673cb..f6ea0bea11d 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xml-base-ambiguous.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xml-base-ambiguous.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Document XML base != Element XML base == href
Expect: SameDocumentReference
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xml-base-elem-ne-doc.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xml-base-elem-ne-doc.xml
index 7b8e9683968..d7aedd91f2b 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xml-base-elem-ne-doc.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xml-base-elem-ne-doc.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: Document XML base != Element XML base != href
Expect: !SameDocumentReference
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xml-base.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xml-base.xml
index 186b2ec0982..7f7f2b8b256 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xml-base.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xml-base.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: ValidXMLBase
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xml-lang-blank.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xml-lang-blank.xml
index 5b65cf2153f..f7aa7765551 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xml-lang-blank.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xml-lang-blank.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: blank xml:lang produces no error
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xml-lang.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xml-lang.xml
index 91433d981aa..2c7ad0cffa7 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xml-lang.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/xml-lang.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: xml:lang produces no error
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/zero-entries.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/zero-entries.xml
index 40bd3c6fc9a..7556a95ac95 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/zero-entries.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/AtomFeeds/zero-entries.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: a feed with zero entries produces no error
Expect: !Error
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/RssDisjointItems.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/RssDisjointItems.xml
index ae78e43fa40..cda53f8db80 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/RssDisjointItems.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/RssDisjointItems.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<rss xmlns:a10="http://www.w3.org/2005/Atom" version="2.0">
+<rss xmlns:a10="http://www.w3.org/2005/Atom" version="2.0">
<channel xml:base="http://mypage.com/">
<title>Contoso News</title>
<link>http://www.Contoso.com/news</link>
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/RssFeedWithCustomImageName.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/RssFeedWithCustomImageName.xml
index 4b5b96f529e..7608b89e454 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/RssFeedWithCustomImageName.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/RssFeedWithCustomImageName.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<rss xmlns:a10="http://www.w3.org/2005/Atom" version="2.0">
+<rss xmlns:a10="http://www.w3.org/2005/Atom" version="2.0">
<channel xml:base="http://mypage.com/">
<title>Contoso News</title>
<link>http://www.Contoso.com/news</link>
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/SimpleAtomFeed.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/SimpleAtomFeed.xml
index 824f2ba47be..89b00b6c99e 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/SimpleAtomFeed.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/SimpleAtomFeed.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<feed xml:base="http://mypage.com/" xmlns="http://www.w3.org/2005/Atom">
+<feed xml:base="http://mypage.com/" xmlns="http://www.w3.org/2005/Atom">
<title type="text">Contoso News</title>
<subtitle type="text">&lt;div&gt;Most recent news from Contoso&lt;/div&gt;</subtitle>
<id>123FeedID</id>
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/SimpleAtomFeedCustomParser.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/SimpleAtomFeedCustomParser.xml
index e6237940dce..d5792c6a549 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/SimpleAtomFeedCustomParser.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/SimpleAtomFeedCustomParser.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<feed xml:base="http://mypage.com/" xmlns="http://www.w3.org/2005/Atom">
+<feed xml:base="http://mypage.com/" xmlns="http://www.w3.org/2005/Atom">
<title type="text">FeedTitle</title>
<subtitle type="text">FeedSubtitle</subtitle>
<id>FeedID</id>
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/SimpleRssFeed.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/SimpleRssFeed.xml
index 1b69a3fd7b4..18357123c56 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/SimpleRssFeed.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/SimpleRssFeed.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<rss xmlns:a10="http://www.w3.org/2005/Atom" version="2.0">
+<rss xmlns:a10="http://www.w3.org/2005/Atom" version="2.0">
<channel xml:base="http://mypage.com/">
<title>Contoso News</title>
<link>http://www.Contoso.com/news</link>
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/atom_spec_example.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/atom_spec_example.xml
index 4efadc6568c..efdc68b3a57 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/atom_spec_example.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/atom_spec_example.xml
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<feed xmlns="http://www.w3.org/2005/Atom">
+<feed xmlns="http://www.w3.org/2005/Atom">
<title type="text">dive into mark</title>
<icon>https://avatars0.githubusercontent.com/u/9141961</icon>
<subtitle type="html">
diff --git a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/brief-entry-noerror.xml b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/brief-entry-noerror.xml
index 954af164b17..619e435005c 100644
--- a/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/brief-entry-noerror.xml
+++ b/src/libraries/System.ServiceModel.Syndication/tests/TestFeeds/brief-entry-noerror.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<!--
Description: No errors should be produced by a minimal entry
Expect: !Error
diff --git a/src/libraries/System.ServiceProcess.ServiceController/Directory.Build.props b/src/libraries/System.ServiceProcess.ServiceController/Directory.Build.props
index 8697d13018f..036c27c05db 100644
--- a/src/libraries/System.ServiceProcess.ServiceController/Directory.Build.props
+++ b/src/libraries/System.ServiceProcess.ServiceController/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.2.2.0</AssemblyVersion>
diff --git a/src/libraries/System.ServiceProcess.ServiceController/pkg/System.ServiceProcess.ServiceController.pkgproj b/src/libraries/System.ServiceProcess.ServiceController/pkg/System.ServiceProcess.ServiceController.pkgproj
index 08cbc4a8627..200a6bdca84 100644
--- a/src/libraries/System.ServiceProcess.ServiceController/pkg/System.ServiceProcess.ServiceController.pkgproj
+++ b/src/libraries/System.ServiceProcess.ServiceController/pkg/System.ServiceProcess.ServiceController.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.ServiceProcess.ServiceController.csproj">
diff --git a/src/libraries/System.ServiceProcess.ServiceController/ref/Configurations.props b/src/libraries/System.ServiceProcess.ServiceController/ref/Configurations.props
index 6308641bd9a..9393ec7ff72 100644
--- a/src/libraries/System.ServiceProcess.ServiceController/ref/Configurations.props
+++ b/src/libraries/System.ServiceProcess.ServiceController/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.ServiceProcess.ServiceController/src/Configurations.props b/src/libraries/System.ServiceProcess.ServiceController/src/Configurations.props
index 3f56e70e5fd..5368156f005 100644
--- a/src/libraries/System.ServiceProcess.ServiceController/src/Configurations.props
+++ b/src/libraries/System.ServiceProcess.ServiceController/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<PackageConfigurations>
netstandard;
diff --git a/src/libraries/System.ServiceProcess.ServiceController/src/Resources/Strings.resx b/src/libraries/System.ServiceProcess.ServiceController/src/Resources/Strings.resx
index b8705287e84..ac4efff21f8 100644
--- a/src/libraries/System.ServiceProcess.ServiceController/src/Resources/Strings.resx
+++ b/src/libraries/System.ServiceProcess.ServiceController/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.ServiceProcess.ServiceController/tests/Configurations.props b/src/libraries/System.ServiceProcess.ServiceController/tests/Configurations.props
index 552f5e92bcc..8bfb431d9ba 100644
--- a/src/libraries/System.ServiceProcess.ServiceController/tests/Configurations.props
+++ b/src/libraries/System.ServiceProcess.ServiceController/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Windows_NT;
diff --git a/src/libraries/System.ServiceProcess.ServiceController/tests/System.ServiceProcess.ServiceController.TestService/Configurations.props b/src/libraries/System.ServiceProcess.ServiceController/tests/System.ServiceProcess.ServiceController.TestService/Configurations.props
index 5e52d60de3c..2e0339e0796 100644
--- a/src/libraries/System.ServiceProcess.ServiceController/tests/System.ServiceProcess.ServiceController.TestService/Configurations.props
+++ b/src/libraries/System.ServiceProcess.ServiceController/tests/System.ServiceProcess.ServiceController.TestService/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Text.Encoding.CodePages/Directory.Build.props b/src/libraries/System.Text.Encoding.CodePages/Directory.Build.props
index 608a635f9e3..4d02dd36012 100644
--- a/src/libraries/System.Text.Encoding.CodePages/Directory.Build.props
+++ b/src/libraries/System.Text.Encoding.CodePages/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.2.0</AssemblyVersion>
diff --git a/src/libraries/System.Text.Encoding.CodePages/pkg/System.Text.Encoding.CodePages.pkgproj b/src/libraries/System.Text.Encoding.CodePages/pkg/System.Text.Encoding.CodePages.pkgproj
index 60c8b6953a6..d44cbfca1f3 100644
--- a/src/libraries/System.Text.Encoding.CodePages/pkg/System.Text.Encoding.CodePages.pkgproj
+++ b/src/libraries/System.Text.Encoding.CodePages/pkg/System.Text.Encoding.CodePages.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.Text.Encoding.CodePages.csproj">
diff --git a/src/libraries/System.Text.Encoding.CodePages/ref/Configurations.props b/src/libraries/System.Text.Encoding.CodePages/ref/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Text.Encoding.CodePages/ref/Configurations.props
+++ b/src/libraries/System.Text.Encoding.CodePages/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Text.Encoding.CodePages/src/Configurations.props b/src/libraries/System.Text.Encoding.CodePages/src/Configurations.props
index 5a32b85e4d8..1eba17f6759 100644
--- a/src/libraries/System.Text.Encoding.CodePages/src/Configurations.props
+++ b/src/libraries/System.Text.Encoding.CodePages/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<PackageConfigurations>
netstandard;
diff --git a/src/libraries/System.Text.Encoding.CodePages/src/Resources/Strings.resx b/src/libraries/System.Text.Encoding.CodePages/src/Resources/Strings.resx
index aab7f36828f..8b4da5e4880 100644
--- a/src/libraries/System.Text.Encoding.CodePages/src/Resources/Strings.resx
+++ b/src/libraries/System.Text.Encoding.CodePages/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
diff --git a/src/libraries/System.Text.Encoding.CodePages/tests/Configurations.props b/src/libraries/System.Text.Encoding.CodePages/tests/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Text.Encoding.CodePages/tests/Configurations.props
+++ b/src/libraries/System.Text.Encoding.CodePages/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Text.Encoding.Extensions/Directory.Build.props b/src/libraries/System.Text.Encoding.Extensions/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Text.Encoding.Extensions/Directory.Build.props
+++ b/src/libraries/System.Text.Encoding.Extensions/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Text.Encoding.Extensions/ref/Configurations.props b/src/libraries/System.Text.Encoding.Extensions/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Text.Encoding.Extensions/ref/Configurations.props
+++ b/src/libraries/System.Text.Encoding.Extensions/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Text.Encoding.Extensions/src/Configurations.props b/src/libraries/System.Text.Encoding.Extensions/src/Configurations.props
index bf5737bf96a..3d283d47008 100644
--- a/src/libraries/System.Text.Encoding.Extensions/src/Configurations.props
+++ b/src/libraries/System.Text.Encoding.Extensions/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.Text.Encoding.Extensions/tests/Configurations.props b/src/libraries/System.Text.Encoding.Extensions/tests/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Text.Encoding.Extensions/tests/Configurations.props
+++ b/src/libraries/System.Text.Encoding.Extensions/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Text.Encoding/Directory.Build.props b/src/libraries/System.Text.Encoding/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Text.Encoding/Directory.Build.props
+++ b/src/libraries/System.Text.Encoding/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Text.Encoding/ref/Configurations.props b/src/libraries/System.Text.Encoding/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Text.Encoding/ref/Configurations.props
+++ b/src/libraries/System.Text.Encoding/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Text.Encoding/src/Configurations.props b/src/libraries/System.Text.Encoding/src/Configurations.props
index 6da09827f37..06e87b8a189 100644
--- a/src/libraries/System.Text.Encoding/src/Configurations.props
+++ b/src/libraries/System.Text.Encoding/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
uapaot-Windows_NT;
diff --git a/src/libraries/System.Text.Encoding/tests/Configurations.props b/src/libraries/System.Text.Encoding/tests/Configurations.props
index 8b803e0772f..f5d3d45ffbf 100644
--- a/src/libraries/System.Text.Encoding/tests/Configurations.props
+++ b/src/libraries/System.Text.Encoding/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Text.Encoding/tests/Performance/Configurations.props b/src/libraries/System.Text.Encoding/tests/Performance/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Text.Encoding/tests/Performance/Configurations.props
+++ b/src/libraries/System.Text.Encoding/tests/Performance/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Text.Encodings.Web/Directory.Build.props b/src/libraries/System.Text.Encodings.Web/Directory.Build.props
index 0a49d18ba31..4e60571e9e2 100644
--- a/src/libraries/System.Text.Encodings.Web/Directory.Build.props
+++ b/src/libraries/System.Text.Encodings.Web/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.4.0</AssemblyVersion>
diff --git a/src/libraries/System.Text.Encodings.Web/pkg/System.Text.Encodings.Web.pkgproj b/src/libraries/System.Text.Encodings.Web/pkg/System.Text.Encodings.Web.pkgproj
index b5634e53762..54b7155b626 100644
--- a/src/libraries/System.Text.Encodings.Web/pkg/System.Text.Encodings.Web.pkgproj
+++ b/src/libraries/System.Text.Encodings.Web/pkg/System.Text.Encodings.Web.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\src\System.Text.Encodings.Web.csproj">
diff --git a/src/libraries/System.Text.Encodings.Web/src/Configurations.props b/src/libraries/System.Text.Encodings.Web/src/Configurations.props
index 84da57e60d7..2882a0e4c89 100644
--- a/src/libraries/System.Text.Encodings.Web/src/Configurations.props
+++ b/src/libraries/System.Text.Encodings.Web/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard1.0;
diff --git a/src/libraries/System.Text.Encodings.Web/tests/Configurations.props b/src/libraries/System.Text.Encodings.Web/tests/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Text.Encodings.Web/tests/Configurations.props
+++ b/src/libraries/System.Text.Encodings.Web/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Text.Json/Directory.Build.props b/src/libraries/System.Text.Json/Directory.Build.props
index 8c36c9f7347..b07417c839b 100644
--- a/src/libraries/System.Text.Json/Directory.Build.props
+++ b/src/libraries/System.Text.Json/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
diff --git a/src/libraries/System.Text.Json/pkg/Microsoft.Bcl.Json.Sources.pkgproj b/src/libraries/System.Text.Json/pkg/Microsoft.Bcl.Json.Sources.pkgproj
index e86f20ac4ad..e2ba61fb210 100644
--- a/src/libraries/System.Text.Json/pkg/Microsoft.Bcl.Json.Sources.pkgproj
+++ b/src/libraries/System.Text.Json/pkg/Microsoft.Bcl.Json.Sources.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<UsingTask TaskName="GenerateSourceWithPublicTypesAsInternal" AssemblyFile="$(PackagingTaskDir)Microsoft.DotNet.Build.Tasks.Packaging.dll" />
diff --git a/src/libraries/System.Text.Json/ref/Configurations.props b/src/libraries/System.Text.Json/ref/Configurations.props
index ea8f3b8f0e1..b6bee41591b 100644
--- a/src/libraries/System.Text.Json/ref/Configurations.props
+++ b/src/libraries/System.Text.Json/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Text.Json/src/Configurations.props b/src/libraries/System.Text.Json/src/Configurations.props
index 719ac6fd370..d11c064f1e0 100644
--- a/src/libraries/System.Text.Json/src/Configurations.props
+++ b/src/libraries/System.Text.Json/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Unix;
diff --git a/src/libraries/System.Text.Json/src/Resources/Strings.resx b/src/libraries/System.Text.Json/src/Resources/Strings.resx
index 0d00205d744..c6cb10eddcc 100644
--- a/src/libraries/System.Text.Json/src/Resources/Strings.resx
+++ b/src/libraries/System.Text.Json/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/System.Text.Json/src/System.Text.Json.csproj b/src/libraries/System.Text.Json/src/System.Text.Json.csproj
index 1b8ac678603..c7cbfa3a931 100644
--- a/src/libraries/System.Text.Json/src/System.Text.Json.csproj
+++ b/src/libraries/System.Text.Json/src/System.Text.Json.csproj
@@ -164,8 +164,7 @@
<Target Name="GetSourcesToPackage" Returns="@(_sourceToPackage)" DependsOnTargets="Compile">
<PropertyGroup>
<_sourcePackageName>Microsoft.Bcl.Json.Sources</_sourcePackageName>
- <_sourcePackageTargetLines><![CDATA[<?xml version="1.0" encoding="utf-8"?>
-<Project>
+ <_sourcePackageTargetLines><![CDATA[<Project>
<ItemGroup Condition="'%24(ExcludeEmbeddedResourceFromPackage)' != 'true'">@(EmbeddedResource->'
<EmbeddedResource Include="%24(MSBuildThisFileDirectory)%(FileName)%(Extension)" Link="$(_sourcePackageName)/%(FileName)%(Extension)" ManifestResourceName="%(ManifestResourceName)" />', '')
</ItemGroup>
diff --git a/src/libraries/System.Text.Json/tests/Configurations.props b/src/libraries/System.Text.Json/tests/Configurations.props
index f338d07cb78..5085e7e5390 100644
--- a/src/libraries/System.Text.Json/tests/Configurations.props
+++ b/src/libraries/System.Text.Json/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Text.Json/tests/Resources/Strings.resx b/src/libraries/System.Text.Json/tests/Resources/Strings.resx
index e86fd102a53..3249795a3c9 100644
--- a/src/libraries/System.Text.Json/tests/Resources/Strings.resx
+++ b/src/libraries/System.Text.Json/tests/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/System.Text.RegularExpressions/Directory.Build.props b/src/libraries/System.Text.RegularExpressions/Directory.Build.props
index 047458dfc57..988124d2d8e 100644
--- a/src/libraries/System.Text.RegularExpressions/Directory.Build.props
+++ b/src/libraries/System.Text.RegularExpressions/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.2.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Text.RegularExpressions/ref/Configurations.props b/src/libraries/System.Text.RegularExpressions/ref/Configurations.props
index 02721ef2a9b..f74685e4dea 100644
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index b1a56942f26..e2dfc9e0f76 100644
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index 73b17873887..be9af53b9bf 100644
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index 512a1e812f5..d5eb3685ae0 100644
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index 249c8c18b46..611acec17f5 100644
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<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
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index 56c04e4080c..b8e2624b97e 100644
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
diff --git a/src/libraries/System.Threading.Tasks.Dataflow/tests/Configurations.props b/src/libraries/System.Threading.Tasks.Dataflow/tests/Configurations.props
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index 4347270f65b..7d66b06af1e 100644
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index 02721ef2a9b..f74685e4dea 100644
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index d58742648ec..5136d110b51 100644
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diff --git a/src/libraries/System.Threading.Tasks.Extensions/tests/Configurations.props b/src/libraries/System.Threading.Tasks.Extensions/tests/Configurations.props
index c7017558637..f97cd5ea7a9 100644
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diff --git a/src/libraries/System.Threading.Tasks.Extensions/tests/Performance/Configurations.props b/src/libraries/System.Threading.Tasks.Extensions/tests/Performance/Configurations.props
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index cac4c947b8b..dd429856628 100644
--- a/src/libraries/System.Threading.Tasks.Parallel/Directory.Build.props
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index c7017558637..f97cd5ea7a9 100644
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index b7611d75b72..591dde55dde 100644
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index 5ee4d680ef8..e9454fdaae7 100644
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index c398e42e899..581054d46db 100644
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index 166d0a25e06..0025ce6cf71 100644
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index c7017558637..f97cd5ea7a9 100644
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index 6da09827f37..06e87b8a189 100644
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index 8b803e0772f..f5d3d45ffbf 100644
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index 166d0a25e06..0025ce6cf71 100644
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index c7017558637..f97cd5ea7a9 100644
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index 6da09827f37..06e87b8a189 100644
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index 57b369f0bb3..adb8c50d5b3 100644
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index f2e3342d5b5..90185507ad7 100644
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index c398e42e899..581054d46db 100644
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index c398e42e899..581054d46db 100644
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index 166d0a25e06..0025ce6cf71 100644
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index c7017558637..f97cd5ea7a9 100644
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index ea34d6257b8..8f0029cd097 100644
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index 166d0a25e06..0025ce6cf71 100644
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index c7017558637..f97cd5ea7a9 100644
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index ea34d6257b8..8f0029cd097 100644
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index 166d0a25e06..0025ce6cf71 100644
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index c7017558637..f97cd5ea7a9 100644
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index ea34d6257b8..8f0029cd097 100644
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index 77a4b65bc94..febffb03ac6 100644
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index b41cdb0fa33..d8cf6babb2a 100644
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index c7017558637..f97cd5ea7a9 100644
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index d8cfd389a8f..109210faad2 100644
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index 60082b48209..3cb826d62b5 100644
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index c398e42e899..581054d46db 100644
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index c5a1d5d47bb..009e8c675ee 100644
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index e81ce942903..79f9c328692 100644
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index e81ce942903..79f9c328692 100644
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index 8b803e0772f..f5d3d45ffbf 100644
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+++ b/src/libraries/System.ValueTuple/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Web.HttpUtility/Directory.Build.props b/src/libraries/System.Web.HttpUtility/Directory.Build.props
index b41cdb0fa33..d8cf6babb2a 100644
--- a/src/libraries/System.Web.HttpUtility/Directory.Build.props
+++ b/src/libraries/System.Web.HttpUtility/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Web.HttpUtility/ref/Configurations.props b/src/libraries/System.Web.HttpUtility/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Web.HttpUtility/ref/Configurations.props
+++ b/src/libraries/System.Web.HttpUtility/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Web.HttpUtility/src/Configurations.props b/src/libraries/System.Web.HttpUtility/src/Configurations.props
index d8cfd389a8f..109210faad2 100644
--- a/src/libraries/System.Web.HttpUtility/src/Configurations.props
+++ b/src/libraries/System.Web.HttpUtility/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Web.HttpUtility/tests/Configurations.props b/src/libraries/System.Web.HttpUtility/tests/Configurations.props
index c398e42e899..581054d46db 100644
--- a/src/libraries/System.Web.HttpUtility/tests/Configurations.props
+++ b/src/libraries/System.Web.HttpUtility/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/System.Windows.Extensions/Directory.Build.props b/src/libraries/System.Windows.Extensions/Directory.Build.props
index 34582111580..c8c6511677d 100644
--- a/src/libraries/System.Windows.Extensions/Directory.Build.props
+++ b/src/libraries/System.Windows.Extensions/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
diff --git a/src/libraries/System.Windows.Extensions/pkg/System.Windows.Extensions.pkgproj b/src/libraries/System.Windows.Extensions/pkg/System.Windows.Extensions.pkgproj
index f32585fb25c..a1f28059722 100644
--- a/src/libraries/System.Windows.Extensions/pkg/System.Windows.Extensions.pkgproj
+++ b/src/libraries/System.Windows.Extensions/pkg/System.Windows.Extensions.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
<ProjectReference Include="..\ref\System.Windows.Extensions.csproj">
diff --git a/src/libraries/System.Windows.Extensions/ref/Configurations.props b/src/libraries/System.Windows.Extensions/ref/Configurations.props
index 2845c11c541..89d6ac0f025 100644
--- a/src/libraries/System.Windows.Extensions/ref/Configurations.props
+++ b/src/libraries/System.Windows.Extensions/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Windows.Extensions/ref/System.Windows.Extensions.csproj b/src/libraries/System.Windows.Extensions/ref/System.Windows.Extensions.csproj
index 75704bfb381..0484ea038f5 100644
--- a/src/libraries/System.Windows.Extensions/ref/System.Windows.Extensions.csproj
+++ b/src/libraries/System.Windows.Extensions/ref/System.Windows.Extensions.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
+<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<ProjectGuid>{36A0298D-E01E-411D-A19B-19EEC60B9A8A}</ProjectGuid>
<Configurations>netcoreapp-Debug;netcoreapp-Release</Configurations>
diff --git a/src/libraries/System.Windows.Extensions/src/Configurations.props b/src/libraries/System.Windows.Extensions/src/Configurations.props
index 965deb6ee6d..ac4c08c5c25 100644
--- a/src/libraries/System.Windows.Extensions/src/Configurations.props
+++ b/src/libraries/System.Windows.Extensions/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Windows_NT;
diff --git a/src/libraries/System.Windows.Extensions/src/Resources/Strings.resx b/src/libraries/System.Windows.Extensions/src/Resources/Strings.resx
index 6ad886a2a97..c20295ae3f6 100644
--- a/src/libraries/System.Windows.Extensions/src/Resources/Strings.resx
+++ b/src/libraries/System.Windows.Extensions/src/Resources/Strings.resx
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
+<root>
<!--
Microsoft ResX Schema
diff --git a/src/libraries/System.Windows.Extensions/tests/Configurations.props b/src/libraries/System.Windows.Extensions/tests/Configurations.props
index 03909885449..1ce60d749f3 100644
--- a/src/libraries/System.Windows.Extensions/tests/Configurations.props
+++ b/src/libraries/System.Windows.Extensions/tests/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Windows_NT;
diff --git a/src/libraries/System.Windows.Extensions/tests/System.Windows.Extensions.Tests.csproj b/src/libraries/System.Windows.Extensions/tests/System.Windows.Extensions.Tests.csproj
index 6e9dff8b650..795e3274659 100644
--- a/src/libraries/System.Windows.Extensions/tests/System.Windows.Extensions.Tests.csproj
+++ b/src/libraries/System.Windows.Extensions/tests/System.Windows.Extensions.Tests.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk" ToolsVersion="14.0">
+<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<ProjectGuid>{AC1A1515-70D8-42E4-9B19-A72F739E974C}</ProjectGuid>
<Configurations>netcoreapp-Windows_NT-Debug;netcoreapp-Windows_NT-Release;netfx-Windows_NT-Debug;netfx-Windows_NT-Release</Configurations>
diff --git a/src/libraries/System.Xml.ReaderWriter/Directory.Build.props b/src/libraries/System.Xml.ReaderWriter/Directory.Build.props
index 047458dfc57..988124d2d8e 100644
--- a/src/libraries/System.Xml.ReaderWriter/Directory.Build.props
+++ b/src/libraries/System.Xml.ReaderWriter/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.2.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Xml.ReaderWriter/ref/Configurations.props b/src/libraries/System.Xml.ReaderWriter/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Xml.ReaderWriter/ref/Configurations.props
+++ b/src/libraries/System.Xml.ReaderWriter/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Xml.ReaderWriter/src/Configurations.props b/src/libraries/System.Xml.ReaderWriter/src/Configurations.props
index af56e5ebca1..cca087cb0cb 100644
--- a/src/libraries/System.Xml.ReaderWriter/src/Configurations.props
+++ b/src/libraries/System.Xml.ReaderWriter/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.Xml.XDocument/Directory.Build.props b/src/libraries/System.Xml.XDocument/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Xml.XDocument/Directory.Build.props
+++ b/src/libraries/System.Xml.XDocument/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Xml.XDocument/ref/Configurations.props b/src/libraries/System.Xml.XDocument/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Xml.XDocument/ref/Configurations.props
+++ b/src/libraries/System.Xml.XDocument/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Xml.XDocument/src/Configurations.props b/src/libraries/System.Xml.XDocument/src/Configurations.props
index af56e5ebca1..cca087cb0cb 100644
--- a/src/libraries/System.Xml.XDocument/src/Configurations.props
+++ b/src/libraries/System.Xml.XDocument/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.Xml.XPath.XDocument/Directory.Build.props b/src/libraries/System.Xml.XPath.XDocument/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Xml.XPath.XDocument/Directory.Build.props
+++ b/src/libraries/System.Xml.XPath.XDocument/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Xml.XPath.XDocument/ref/Configurations.props b/src/libraries/System.Xml.XPath.XDocument/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Xml.XPath.XDocument/ref/Configurations.props
+++ b/src/libraries/System.Xml.XPath.XDocument/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Xml.XPath.XDocument/src/Configurations.props b/src/libraries/System.Xml.XPath.XDocument/src/Configurations.props
index af56e5ebca1..cca087cb0cb 100644
--- a/src/libraries/System.Xml.XPath.XDocument/src/Configurations.props
+++ b/src/libraries/System.Xml.XPath.XDocument/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.Xml.XPath/Directory.Build.props b/src/libraries/System.Xml.XPath/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Xml.XPath/Directory.Build.props
+++ b/src/libraries/System.Xml.XPath/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Xml.XPath/ref/Configurations.props b/src/libraries/System.Xml.XPath/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Xml.XPath/ref/Configurations.props
+++ b/src/libraries/System.Xml.XPath/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Xml.XPath/src/Configurations.props b/src/libraries/System.Xml.XPath/src/Configurations.props
index af56e5ebca1..cca087cb0cb 100644
--- a/src/libraries/System.Xml.XPath/src/Configurations.props
+++ b/src/libraries/System.Xml.XPath/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.Xml.XmlDocument/Directory.Build.props b/src/libraries/System.Xml.XmlDocument/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Xml.XmlDocument/Directory.Build.props
+++ b/src/libraries/System.Xml.XmlDocument/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Xml.XmlDocument/ref/Configurations.props b/src/libraries/System.Xml.XmlDocument/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Xml.XmlDocument/ref/Configurations.props
+++ b/src/libraries/System.Xml.XmlDocument/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Xml.XmlDocument/src/Configurations.props b/src/libraries/System.Xml.XmlDocument/src/Configurations.props
index af56e5ebca1..cca087cb0cb 100644
--- a/src/libraries/System.Xml.XmlDocument/src/Configurations.props
+++ b/src/libraries/System.Xml.XmlDocument/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/System.Xml.XmlSerializer/Directory.Build.props b/src/libraries/System.Xml.XmlSerializer/Directory.Build.props
index 166d0a25e06..0025ce6cf71 100644
--- a/src/libraries/System.Xml.XmlSerializer/Directory.Build.props
+++ b/src/libraries/System.Xml.XmlSerializer/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<AssemblyVersion>4.1.1.0</AssemblyVersion>
diff --git a/src/libraries/System.Xml.XmlSerializer/ref/Configurations.props b/src/libraries/System.Xml.XmlSerializer/ref/Configurations.props
index c7017558637..f97cd5ea7a9 100644
--- a/src/libraries/System.Xml.XmlSerializer/ref/Configurations.props
+++ b/src/libraries/System.Xml.XmlSerializer/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/System.Xml.XmlSerializer/src/Configurations.props b/src/libraries/System.Xml.XmlSerializer/src/Configurations.props
index ea34d6257b8..8f0029cd097 100644
--- a/src/libraries/System.Xml.XmlSerializer/src/Configurations.props
+++ b/src/libraries/System.Xml.XmlSerializer/src/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<PropertyGroup>
<BuildConfigurations>
uap-Windows_NT;
diff --git a/src/libraries/build.proj b/src/libraries/build.proj
index 5d73223448e..8cec9068fff 100644
--- a/src/libraries/build.proj
+++ b/src/libraries/build.proj
@@ -1,5 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Licensed to the .NET Foundation under one or more agreements. The .NET Foundation licenses this file to you under the MIT license. See the LICENSE file in the project root for more information. -->
<Project DefaultTargets="Build">
<Import Project="Directory.Build.props" />
diff --git a/src/libraries/external/Directory.Build.props b/src/libraries/external/Directory.Build.props
index 9564ed9195f..34efcad7581 100644
--- a/src/libraries/external/Directory.Build.props
+++ b/src/libraries/external/Directory.Build.props
@@ -1,4 +1,4 @@
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
<ContainsPackageReferences>true</ContainsPackageReferences>
diff --git a/src/libraries/external/Directory.Build.targets b/src/libraries/external/Directory.Build.targets
index 7c9bff7f39c..a4460fd36b6 100644
--- a/src/libraries/external/Directory.Build.targets
+++ b/src/libraries/external/Directory.Build.targets
@@ -1,4 +1,4 @@
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.targets" />
<PropertyGroup>
diff --git a/src/libraries/external/ILLink/Configurations.props b/src/libraries/external/ILLink/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/external/ILLink/Configurations.props
+++ b/src/libraries/external/ILLink/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/external/ILLink/ILLink.depproj b/src/libraries/external/ILLink/ILLink.depproj
index f74937b214a..5049897cd56 100644
--- a/src/libraries/external/ILLink/ILLink.depproj
+++ b/src/libraries/external/ILLink/ILLink.depproj
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netcoreapp1.1</TargetFramework>
diff --git a/src/libraries/external/SharedFrameworkValidation/harvestPackages.SharedFramework.depproj b/src/libraries/external/SharedFrameworkValidation/harvestPackages.SharedFramework.depproj
index b76393f5253..61b0c442af7 100644
--- a/src/libraries/external/SharedFrameworkValidation/harvestPackages.SharedFramework.depproj
+++ b/src/libraries/external/SharedFrameworkValidation/harvestPackages.SharedFramework.depproj
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<_LatestStable>1.1.2</_LatestStable>
diff --git a/src/libraries/external/binplacePackages/Configurations.props b/src/libraries/external/binplacePackages/Configurations.props
index d6c6c395fd6..d72738d5e62 100644
--- a/src/libraries/external/binplacePackages/Configurations.props
+++ b/src/libraries/external/binplacePackages/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
net461;
diff --git a/src/libraries/external/binplacePackages/binplacePackages.depproj b/src/libraries/external/binplacePackages/binplacePackages.depproj
index 674b86d443c..0f6da524ca1 100644
--- a/src/libraries/external/binplacePackages/binplacePackages.depproj
+++ b/src/libraries/external/binplacePackages/binplacePackages.depproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<BinPlaceRef>true</BinPlaceRef>
<BinPlaceRuntime>true</BinPlaceRuntime>
diff --git a/src/libraries/external/dir.proj b/src/libraries/external/dir.proj
index a1b57acf120..fccddc9f626 100644
--- a/src/libraries/external/dir.proj
+++ b/src/libraries/external/dir.proj
@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build">
- <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
+ <Import Project="../Directory.Build.props" />
<PropertyGroup>
<AdditionalBuildConfigurations>$(AdditionalBuildConfigurations);netstandard-$(OSGroup)-$(ConfigurationGroup)-$(ArchGroup)</AdditionalBuildConfigurations>
diff --git a/src/libraries/external/docs/Configurations.props b/src/libraries/external/docs/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/external/docs/Configurations.props
+++ b/src/libraries/external/docs/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/external/docs/docs.depproj b/src/libraries/external/docs/docs.depproj
index 5e7256fca49..ea14300c2c0 100644
--- a/src/libraries/external/docs/docs.depproj
+++ b/src/libraries/external/docs/docs.depproj
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputPath>$(XmlDocDir)</OutputPath>
diff --git a/src/libraries/external/harvestPackages/Configurations.props b/src/libraries/external/harvestPackages/Configurations.props
index 1a5940dc0b1..a5bb838e9e0 100644
--- a/src/libraries/external/harvestPackages/Configurations.props
+++ b/src/libraries/external/harvestPackages/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
package;
diff --git a/src/libraries/external/harvestPackages/harvestPackages.depproj b/src/libraries/external/harvestPackages/harvestPackages.depproj
index 0195f57d98e..03837d22892 100644
--- a/src/libraries/external/harvestPackages/harvestPackages.depproj
+++ b/src/libraries/external/harvestPackages/harvestPackages.depproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
</PropertyGroup>
diff --git a/src/libraries/external/harvestPackages/harvestPackages.props b/src/libraries/external/harvestPackages/harvestPackages.props
index a0d11ae15e1..4b088b2258d 100644
--- a/src/libraries/external/harvestPackages/harvestPackages.props
+++ b/src/libraries/external/harvestPackages/harvestPackages.props
@@ -1,4 +1,4 @@
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<!-- The versions can be updated by running UpdateToLatestStablePackages target in harvestPackages.depproj -->
<ItemGroup>
<PackageReference Include="Microsoft.CSharp">
diff --git a/src/libraries/external/netcoreapp/Configurations.props b/src/libraries/external/netcoreapp/Configurations.props
index e08fdd89556..c43aa43772f 100644
--- a/src/libraries/external/netcoreapp/Configurations.props
+++ b/src/libraries/external/netcoreapp/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp2.0;
diff --git a/src/libraries/external/netcoreapp/netcoreapp.depproj b/src/libraries/external/netcoreapp/netcoreapp.depproj
index 6405fd179d9..6a991e590be 100644
--- a/src/libraries/external/netcoreapp/netcoreapp.depproj
+++ b/src/libraries/external/netcoreapp/netcoreapp.depproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
<!-- This project restores and publishes the targeting pack for specific versions of .NET Core.
With this, we are able to compile assemblies against shipped, stable versions of .NET Core. -->
<PropertyGroup>
diff --git a/src/libraries/external/netfx/Configurations.props b/src/libraries/external/netfx/Configurations.props
index 93e6478e90f..a9f2b3349f5 100644
--- a/src/libraries/external/netfx/Configurations.props
+++ b/src/libraries/external/netfx/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<!-- Include netcoreapp since we need to generate facades between desktop and netcoreapp -->
<BuildConfigurations>
diff --git a/src/libraries/external/netfx/netfx.depproj b/src/libraries/external/netfx/netfx.depproj
index 3ed3d972b04..ccf87f90409 100644
--- a/src/libraries/external/netfx/netfx.depproj
+++ b/src/libraries/external/netfx/netfx.depproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
<Import Project="$(SourceDir)\shims\netfxreference.props" />
<PropertyGroup>
<BinPlaceRef>true</BinPlaceRef>
diff --git a/src/libraries/external/netstandard/Configurations.props b/src/libraries/external/netstandard/Configurations.props
index 2e14c5a1f6f..2a793c3fe67 100644
--- a/src/libraries/external/netstandard/Configurations.props
+++ b/src/libraries/external/netstandard/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard1.0;
diff --git a/src/libraries/external/netstandard/netstandard.depproj b/src/libraries/external/netstandard/netstandard.depproj
index efc29e580c3..7e474bb52ef 100644
--- a/src/libraries/external/netstandard/netstandard.depproj
+++ b/src/libraries/external/netstandard/netstandard.depproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<NETStandardVersion Condition="$(TargetFramework.StartsWith('netstandard'))">$(TargetFramework.SubString(11))</NETStandardVersion>
<IsNETStandard1x Condition="$(NETStandardVersion.StartsWith('1.'))">true</IsNETStandard1x>
diff --git a/src/libraries/external/optimizationData/Configurations.props b/src/libraries/external/optimizationData/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/external/optimizationData/Configurations.props
+++ b/src/libraries/external/optimizationData/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/external/optimizationData/optimizationData.depproj b/src/libraries/external/optimizationData/optimizationData.depproj
index d591aea933e..40a47957037 100644
--- a/src/libraries/external/optimizationData/optimizationData.depproj
+++ b/src/libraries/external/optimizationData/optimizationData.depproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<!-- Copy to IBC directory -->
<OutputPath>$(IbcOptimizationDataDir)</OutputPath>
diff --git a/src/libraries/external/runtime/Configurations.props b/src/libraries/external/runtime/Configurations.props
index 63b40fdf83b..a63f4d4d76d 100644
--- a/src/libraries/external/runtime/Configurations.props
+++ b/src/libraries/external/runtime/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Windows_NT;
diff --git a/src/libraries/external/runtime/Directory.Build.props b/src/libraries/external/runtime/Directory.Build.props
index 8e5eba7c8f9..a86068c18c0 100644
--- a/src/libraries/external/runtime/Directory.Build.props
+++ b/src/libraries/external/runtime/Directory.Build.props
@@ -1,4 +1,4 @@
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<OutDirName>external.$(MSBuildProjectName)</OutDirName>
</PropertyGroup>
diff --git a/src/libraries/external/runtime/runtime.depproj b/src/libraries/external/runtime/runtime.depproj
index 8fcbdbafe7e..83dad870861 100644
--- a/src/libraries/external/runtime/runtime.depproj
+++ b/src/libraries/external/runtime/runtime.depproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<RuntimeIdentifier>$(PackageRID)</RuntimeIdentifier>
<NoWarn>$(NoWarn);NU1603;NU1605</NoWarn>
diff --git a/src/libraries/external/test-runtime/Configurations.props b/src/libraries/external/test-runtime/Configurations.props
index 3b11f75e394..d9c88a0605a 100644
--- a/src/libraries/external/test-runtime/Configurations.props
+++ b/src/libraries/external/test-runtime/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
uap;
diff --git a/src/libraries/external/test-runtime/XUnit.Runtime.depproj b/src/libraries/external/test-runtime/XUnit.Runtime.depproj
index c0051e0d679..02256e1073b 100644
--- a/src/libraries/external/test-runtime/XUnit.Runtime.depproj
+++ b/src/libraries/external/test-runtime/XUnit.Runtime.depproj
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup Condition="'$(TargetGroup)' == 'uap' OR '$(TargetGroup)' == 'uapaot'">
<TargetFramework>netstandard2.0</TargetFramework>
diff --git a/src/libraries/external/tools/Configurations.props b/src/libraries/external/tools/Configurations.props
index 733538b0645..93d8aff55d9 100644
--- a/src/libraries/external/tools/Configurations.props
+++ b/src/libraries/external/tools/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp-Windows_NT;
diff --git a/src/libraries/external/tools/tools.depproj b/src/libraries/external/tools/tools.depproj
index 07ef3af895f..833a612af5e 100644
--- a/src/libraries/external/tools/tools.depproj
+++ b/src/libraries/external/tools/tools.depproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputPath>$(ILAsmToolPath)</OutputPath>
<EnableBinPlacing>false</EnableBinPlacing>
diff --git a/src/libraries/external/uap/Configurations.props b/src/libraries/external/uap/Configurations.props
index 128839ca24e..a4dd681c869 100644
--- a/src/libraries/external/uap/Configurations.props
+++ b/src/libraries/external/uap/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
uap10.0.16299;
diff --git a/src/libraries/external/uap/uap.depproj b/src/libraries/external/uap/uap.depproj
index 9864893ced8..1d9d5eff2df 100644
--- a/src/libraries/external/uap/uap.depproj
+++ b/src/libraries/external/uap/uap.depproj
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project Sdk="Microsoft.NET.Sdk">
<!-- This project restores and publishes the targeting pack for specific versions of UAP.
With this, we are able to compile assemblies against shipped, stable versions of UAP. -->
diff --git a/src/libraries/external/winrt/Configurations.props b/src/libraries/external/winrt/Configurations.props
index 04ff7ea9b29..1f9fd8f32f2 100644
--- a/src/libraries/external/winrt/Configurations.props
+++ b/src/libraries/external/winrt/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/external/winrt/winrt.depproj b/src/libraries/external/winrt/winrt.depproj
index af837945952..ee9e2f3fa7c 100644
--- a/src/libraries/external/winrt/winrt.depproj
+++ b/src/libraries/external/winrt/winrt.depproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<AssemblyName>Windows</AssemblyName>
<TargetExt>.winmd</TargetExt>
diff --git a/src/libraries/mscorlib.WinRT-Facade/ref/Configurations.props b/src/libraries/mscorlib.WinRT-Facade/ref/Configurations.props
index 0840ff6dc03..fbf7203fa1e 100644
--- a/src/libraries/mscorlib.WinRT-Facade/ref/Configurations.props
+++ b/src/libraries/mscorlib.WinRT-Facade/ref/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
uap;
diff --git a/src/libraries/packages.builds b/src/libraries/packages.builds
index 829c89f8ff2..eb33caecf68 100644
--- a/src/libraries/packages.builds
+++ b/src/libraries/packages.builds
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project>
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
diff --git a/src/libraries/pkg/Directory.Build.props b/src/libraries/pkg/Directory.Build.props
index 19e61cb1b23..972590c539c 100644
--- a/src/libraries/pkg/Directory.Build.props
+++ b/src/libraries/pkg/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Directory.Build.props" />
<PropertyGroup>
diff --git a/src/libraries/pkg/Directory.Build.targets b/src/libraries/pkg/Directory.Build.targets
index 6d1a6448f6c..0c723a98dc9 100644
--- a/src/libraries/pkg/Directory.Build.targets
+++ b/src/libraries/pkg/Directory.Build.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Condition="'$(IsFrameworkPackage)' == 'true'" Project="frameworkPackage.targets" />
diff --git a/src/libraries/pkg/Microsoft.NETCore.Platforms.Future/Configurations.props b/src/libraries/pkg/Microsoft.NETCore.Platforms.Future/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/pkg/Microsoft.NETCore.Platforms.Future/Configurations.props
+++ b/src/libraries/pkg/Microsoft.NETCore.Platforms.Future/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/pkg/Microsoft.NETCore.Platforms.Future/Microsoft.NETCore.Platforms.Future.builds b/src/libraries/pkg/Microsoft.NETCore.Platforms.Future/Microsoft.NETCore.Platforms.Future.builds
index ae7e66402da..24c9f63af13 100644
--- a/src/libraries/pkg/Microsoft.NETCore.Platforms.Future/Microsoft.NETCore.Platforms.Future.builds
+++ b/src/libraries/pkg/Microsoft.NETCore.Platforms.Future/Microsoft.NETCore.Platforms.Future.builds
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.props))" />
diff --git a/src/libraries/pkg/Microsoft.NETCore.Platforms.Future/Microsoft.NETCore.Platforms.Future.pkgproj b/src/libraries/pkg/Microsoft.NETCore.Platforms.Future/Microsoft.NETCore.Platforms.Future.pkgproj
index 322a73f4889..ad5fd4137d7 100644
--- a/src/libraries/pkg/Microsoft.NETCore.Platforms.Future/Microsoft.NETCore.Platforms.Future.pkgproj
+++ b/src/libraries/pkg/Microsoft.NETCore.Platforms.Future/Microsoft.NETCore.Platforms.Future.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<PropertyGroup>
<PackageVersion>3.0.0</PackageVersion>
diff --git a/src/libraries/pkg/Microsoft.NETCore.Platforms.Future/runtimeGroups.props b/src/libraries/pkg/Microsoft.NETCore.Platforms.Future/runtimeGroups.props
index b8004431907..ff4c96a23b8 100644
--- a/src/libraries/pkg/Microsoft.NETCore.Platforms.Future/runtimeGroups.props
+++ b/src/libraries/pkg/Microsoft.NETCore.Platforms.Future/runtimeGroups.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<RuntimeGroup Include="unix">
<Architectures>wasm</Architectures>
diff --git a/src/libraries/pkg/Microsoft.NETCore.Platforms/Configurations.props b/src/libraries/pkg/Microsoft.NETCore.Platforms/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/pkg/Microsoft.NETCore.Platforms/Configurations.props
+++ b/src/libraries/pkg/Microsoft.NETCore.Platforms/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/pkg/Microsoft.NETCore.Platforms/Microsoft.NETCore.Platforms.builds b/src/libraries/pkg/Microsoft.NETCore.Platforms/Microsoft.NETCore.Platforms.builds
index c9e1b4e6f19..327d80c26e9 100644
--- a/src/libraries/pkg/Microsoft.NETCore.Platforms/Microsoft.NETCore.Platforms.builds
+++ b/src/libraries/pkg/Microsoft.NETCore.Platforms/Microsoft.NETCore.Platforms.builds
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.props))" />
diff --git a/src/libraries/pkg/Microsoft.NETCore.Platforms/Microsoft.NETCore.Platforms.pkgproj b/src/libraries/pkg/Microsoft.NETCore.Platforms/Microsoft.NETCore.Platforms.pkgproj
index 3c6f865e98b..14f85010262 100644
--- a/src/libraries/pkg/Microsoft.NETCore.Platforms/Microsoft.NETCore.Platforms.pkgproj
+++ b/src/libraries/pkg/Microsoft.NETCore.Platforms/Microsoft.NETCore.Platforms.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<PropertyGroup>
<PackageVersion>$(PlatformPackageVersion)</PackageVersion>
diff --git a/src/libraries/pkg/Microsoft.NETCore.Platforms/runtimeGroups.props b/src/libraries/pkg/Microsoft.NETCore.Platforms/runtimeGroups.props
index 737c04e8f6c..a819d57ddc6 100644
--- a/src/libraries/pkg/Microsoft.NETCore.Platforms/runtimeGroups.props
+++ b/src/libraries/pkg/Microsoft.NETCore.Platforms/runtimeGroups.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<RuntimeGroup Include="unix">
<Parent>any</Parent>
diff --git a/src/libraries/pkg/Microsoft.NETCore.Targets/Configurations.props b/src/libraries/pkg/Microsoft.NETCore.Targets/Configurations.props
index c398e42e899..ff0d415e459 100644
--- a/src/libraries/pkg/Microsoft.NETCore.Targets/Configurations.props
+++ b/src/libraries/pkg/Microsoft.NETCore.Targets/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netstandard;
diff --git a/src/libraries/pkg/Microsoft.NETCore.Targets/Microsoft.NETCore.Targets.builds b/src/libraries/pkg/Microsoft.NETCore.Targets/Microsoft.NETCore.Targets.builds
index 376697aee95..42decc25ce2 100644
--- a/src/libraries/pkg/Microsoft.NETCore.Targets/Microsoft.NETCore.Targets.builds
+++ b/src/libraries/pkg/Microsoft.NETCore.Targets/Microsoft.NETCore.Targets.builds
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.props))" />
diff --git a/src/libraries/pkg/Microsoft.NETCore.Targets/Microsoft.NETCore.Targets.pkgproj b/src/libraries/pkg/Microsoft.NETCore.Targets/Microsoft.NETCore.Targets.pkgproj
index 160edff0a2d..d57412478ea 100644
--- a/src/libraries/pkg/Microsoft.NETCore.Targets/Microsoft.NETCore.Targets.pkgproj
+++ b/src/libraries/pkg/Microsoft.NETCore.Targets/Microsoft.NETCore.Targets.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<PropertyGroup>
<PackageVersion>3.0.0</PackageVersion>
diff --git a/src/libraries/pkg/Microsoft.Private.CoreFx.NETCoreApp/Configurations.props b/src/libraries/pkg/Microsoft.Private.CoreFx.NETCoreApp/Configurations.props
index 20b9b955999..eb733ee2537 100644
--- a/src/libraries/pkg/Microsoft.Private.CoreFx.NETCoreApp/Configurations.props
+++ b/src/libraries/pkg/Microsoft.Private.CoreFx.NETCoreApp/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/pkg/Microsoft.Private.CoreFx.NETCoreApp/Microsoft.Private.CoreFx.NETCoreApp.builds b/src/libraries/pkg/Microsoft.Private.CoreFx.NETCoreApp/Microsoft.Private.CoreFx.NETCoreApp.builds
index a1f17ddca8f..6b4709c6242 100644
--- a/src/libraries/pkg/Microsoft.Private.CoreFx.NETCoreApp/Microsoft.Private.CoreFx.NETCoreApp.builds
+++ b/src/libraries/pkg/Microsoft.Private.CoreFx.NETCoreApp/Microsoft.Private.CoreFx.NETCoreApp.builds
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.props))" />
diff --git a/src/libraries/pkg/Microsoft.Private.CoreFx.NETCoreApp/Microsoft.Private.CoreFx.NETCoreApp.pkgproj b/src/libraries/pkg/Microsoft.Private.CoreFx.NETCoreApp/Microsoft.Private.CoreFx.NETCoreApp.pkgproj
index af2e2175078..ca5a4bb4515 100644
--- a/src/libraries/pkg/Microsoft.Private.CoreFx.NETCoreApp/Microsoft.Private.CoreFx.NETCoreApp.pkgproj
+++ b/src/libraries/pkg/Microsoft.Private.CoreFx.NETCoreApp/Microsoft.Private.CoreFx.NETCoreApp.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<PropertyGroup>
diff --git a/src/libraries/pkg/Microsoft.Private.CoreFx.NETCoreApp/netcoreapp.rids.props b/src/libraries/pkg/Microsoft.Private.CoreFx.NETCoreApp/netcoreapp.rids.props
index 63aedae5b98..74cae03f39f 100644
--- a/src/libraries/pkg/Microsoft.Private.CoreFx.NETCoreApp/netcoreapp.rids.props
+++ b/src/libraries/pkg/Microsoft.Private.CoreFx.NETCoreApp/netcoreapp.rids.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<OfficialBuildRID Include="freebsd-x64" />
<OfficialBuildRID Include="linux-arm">
diff --git a/src/libraries/pkg/Microsoft.Private.CoreFx.UAP/Configurations.props b/src/libraries/pkg/Microsoft.Private.CoreFx.UAP/Configurations.props
index 173e6387810..ff7f8f8ec19 100644
--- a/src/libraries/pkg/Microsoft.Private.CoreFx.UAP/Configurations.props
+++ b/src/libraries/pkg/Microsoft.Private.CoreFx.UAP/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
uap;
diff --git a/src/libraries/pkg/Microsoft.Private.CoreFx.UAP/Microsoft.Private.CoreFx.UAP.builds b/src/libraries/pkg/Microsoft.Private.CoreFx.UAP/Microsoft.Private.CoreFx.UAP.builds
index 1ca8ac3fe6b..56133fddfba 100644
--- a/src/libraries/pkg/Microsoft.Private.CoreFx.UAP/Microsoft.Private.CoreFx.UAP.builds
+++ b/src/libraries/pkg/Microsoft.Private.CoreFx.UAP/Microsoft.Private.CoreFx.UAP.builds
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.props))" />
diff --git a/src/libraries/pkg/Microsoft.Private.CoreFx.UAP/Microsoft.Private.CoreFx.UAP.pkgproj b/src/libraries/pkg/Microsoft.Private.CoreFx.UAP/Microsoft.Private.CoreFx.UAP.pkgproj
index 7bb0aba11cb..0d0db112793 100644
--- a/src/libraries/pkg/Microsoft.Private.CoreFx.UAP/Microsoft.Private.CoreFx.UAP.pkgproj
+++ b/src/libraries/pkg/Microsoft.Private.CoreFx.UAP/Microsoft.Private.CoreFx.UAP.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<PropertyGroup>
<PackageVersion>4.7.0</PackageVersion>
diff --git a/src/libraries/pkg/Microsoft.Private.CoreFx.UAP/uap.rids.props b/src/libraries/pkg/Microsoft.Private.CoreFx.UAP/uap.rids.props
index 1bccba4a0bf..7db9c216861 100644
--- a/src/libraries/pkg/Microsoft.Private.CoreFx.UAP/uap.rids.props
+++ b/src/libraries/pkg/Microsoft.Private.CoreFx.UAP/uap.rids.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<OfficialBuildRID Include="win10-x86">
<Platform>x86</Platform>
diff --git a/src/libraries/pkg/Microsoft.Private.PackageBaseline/Microsoft.Private.PackageBaseline.builds b/src/libraries/pkg/Microsoft.Private.PackageBaseline/Microsoft.Private.PackageBaseline.builds
index bd65eb0f44b..69f418e3840 100644
--- a/src/libraries/pkg/Microsoft.Private.PackageBaseline/Microsoft.Private.PackageBaseline.builds
+++ b/src/libraries/pkg/Microsoft.Private.PackageBaseline/Microsoft.Private.PackageBaseline.builds
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.props))" />
diff --git a/src/libraries/pkg/Microsoft.Private.PackageBaseline/Microsoft.Private.PackageBaseline.pkgproj b/src/libraries/pkg/Microsoft.Private.PackageBaseline/Microsoft.Private.PackageBaseline.pkgproj
index 07e5707e690..b9bd433bee7 100644
--- a/src/libraries/pkg/Microsoft.Private.PackageBaseline/Microsoft.Private.PackageBaseline.pkgproj
+++ b/src/libraries/pkg/Microsoft.Private.PackageBaseline/Microsoft.Private.PackageBaseline.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<PropertyGroup>
<HarvestStablePackage>false</HarvestStablePackage>
diff --git a/src/libraries/pkg/Microsoft.Private.PackageBaseline/Microsoft.Private.PackageBaseline.props b/src/libraries/pkg/Microsoft.Private.PackageBaseline/Microsoft.Private.PackageBaseline.props
index 8f293788749..02801dc5433 100644
--- a/src/libraries/pkg/Microsoft.Private.PackageBaseline/Microsoft.Private.PackageBaseline.props
+++ b/src/libraries/pkg/Microsoft.Private.PackageBaseline/Microsoft.Private.PackageBaseline.props
@@ -1,4 +1,4 @@
-<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<PackageIndex Include="$(MSBuildThisFileDirectory)packageIndex.json" />
</ItemGroup>
diff --git a/src/libraries/pkg/Microsoft.Windows.Compatibility.Shims/Microsoft.Windows.Compatibility.Shims.builds b/src/libraries/pkg/Microsoft.Windows.Compatibility.Shims/Microsoft.Windows.Compatibility.Shims.builds
index a55a916998b..17a7f168902 100644
--- a/src/libraries/pkg/Microsoft.Windows.Compatibility.Shims/Microsoft.Windows.Compatibility.Shims.builds
+++ b/src/libraries/pkg/Microsoft.Windows.Compatibility.Shims/Microsoft.Windows.Compatibility.Shims.builds
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.props))" />
diff --git a/src/libraries/pkg/Microsoft.Windows.Compatibility.Shims/Microsoft.Windows.Compatibility.Shims.pkgproj b/src/libraries/pkg/Microsoft.Windows.Compatibility.Shims/Microsoft.Windows.Compatibility.Shims.pkgproj
index 5180f375d10..3a414d24e68 100644
--- a/src/libraries/pkg/Microsoft.Windows.Compatibility.Shims/Microsoft.Windows.Compatibility.Shims.pkgproj
+++ b/src/libraries/pkg/Microsoft.Windows.Compatibility.Shims/Microsoft.Windows.Compatibility.Shims.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<PropertyGroup>
diff --git a/src/libraries/pkg/Microsoft.Windows.Compatibility/Microsoft.Windows.Compatibility.builds b/src/libraries/pkg/Microsoft.Windows.Compatibility/Microsoft.Windows.Compatibility.builds
index a55a916998b..17a7f168902 100644
--- a/src/libraries/pkg/Microsoft.Windows.Compatibility/Microsoft.Windows.Compatibility.builds
+++ b/src/libraries/pkg/Microsoft.Windows.Compatibility/Microsoft.Windows.Compatibility.builds
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.props))" />
diff --git a/src/libraries/pkg/Microsoft.Windows.Compatibility/Microsoft.Windows.Compatibility.pkgproj b/src/libraries/pkg/Microsoft.Windows.Compatibility/Microsoft.Windows.Compatibility.pkgproj
index 8b0e4e24e2b..81c0377d316 100644
--- a/src/libraries/pkg/Microsoft.Windows.Compatibility/Microsoft.Windows.Compatibility.pkgproj
+++ b/src/libraries/pkg/Microsoft.Windows.Compatibility/Microsoft.Windows.Compatibility.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<PropertyGroup>
<!-- We use the PackageVersion property defined in Packaging.props for the Prerelease packages which are using it to be built -->
diff --git a/src/libraries/pkg/baseline/baseline.props b/src/libraries/pkg/baseline/baseline.props
index d5e93dbfd5a..a496dfa4dc8 100644
--- a/src/libraries/pkg/baseline/baseline.props
+++ b/src/libraries/pkg/baseline/baseline.props
@@ -1,4 +1,4 @@
-<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="..\Microsoft.Private.PackageBaseline\Microsoft.Private.PackageBaseline.props" />
<PropertyGroup>
diff --git a/src/libraries/pkg/dir.traversal.targets b/src/libraries/pkg/dir.traversal.targets
index 0eb5a4fcb6c..c3864734a02 100644
--- a/src/libraries/pkg/dir.traversal.targets
+++ b/src/libraries/pkg/dir.traversal.targets
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project>
<Import Project="$(RepositoryEngineeringDir)dir.traversal.targets" />
diff --git a/src/libraries/pkg/frameworkPackage.targets b/src/libraries/pkg/frameworkPackage.targets
index 97771e270ec..1c0abf101f0 100644
--- a/src/libraries/pkg/frameworkPackage.targets
+++ b/src/libraries/pkg/frameworkPackage.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" InitialTargets="_CheckForFiles;IncludeFiles;SetValidateFramework" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project InitialTargets="_CheckForFiles;IncludeFiles;SetValidateFramework">
<PropertyGroup>
<IsLineupPackage Condition="'$(PackageTargetRuntime)' == '' AND '$(IncludeLibFiles)' != 'true'">true</IsLineupPackage>
diff --git a/src/libraries/pkg/runtime.native.System.IO.Ports/Configurations.props b/src/libraries/pkg/runtime.native.System.IO.Ports/Configurations.props
index d3ac8a63c74..19236e72c58 100644
--- a/src/libraries/pkg/runtime.native.System.IO.Ports/Configurations.props
+++ b/src/libraries/pkg/runtime.native.System.IO.Ports/Configurations.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<BuildConfigurations>
netcoreapp;
diff --git a/src/libraries/pkg/runtime.native.System.IO.Ports/netcoreapp.rids.props b/src/libraries/pkg/runtime.native.System.IO.Ports/netcoreapp.rids.props
index db3a2c187a5..5aae9f14620 100644
--- a/src/libraries/pkg/runtime.native.System.IO.Ports/netcoreapp.rids.props
+++ b/src/libraries/pkg/runtime.native.System.IO.Ports/netcoreapp.rids.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<BuildRID Include="linux-arm">
<Platform>arm</Platform>
diff --git a/src/libraries/pkg/runtime.native.System.IO.Ports/runtime.native.System.IO.Ports.builds b/src/libraries/pkg/runtime.native.System.IO.Ports/runtime.native.System.IO.Ports.builds
index a1f17ddca8f..6b4709c6242 100644
--- a/src/libraries/pkg/runtime.native.System.IO.Ports/runtime.native.System.IO.Ports.builds
+++ b/src/libraries/pkg/runtime.native.System.IO.Ports/runtime.native.System.IO.Ports.builds
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.props))" />
diff --git a/src/libraries/pkg/runtime.native.System.IO.Ports/runtime.native.System.IO.Ports.pkgproj b/src/libraries/pkg/runtime.native.System.IO.Ports/runtime.native.System.IO.Ports.pkgproj
index c3880689f21..58327c22b6f 100644
--- a/src/libraries/pkg/runtime.native.System.IO.Ports/runtime.native.System.IO.Ports.pkgproj
+++ b/src/libraries/pkg/runtime.native.System.IO.Ports/runtime.native.System.IO.Ports.pkgproj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<PropertyGroup>
<SkipPackageFileCheck>true</SkipPackageFileCheck>
diff --git a/src/libraries/pkg/test/frameworkSettings/net/settings.targets b/src/libraries/pkg/test/frameworkSettings/net/settings.targets
index a92c2e225ce..25b7f5936bc 100644
--- a/src/libraries/pkg/test/frameworkSettings/net/settings.targets
+++ b/src/libraries/pkg/test/frameworkSettings/net/settings.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<!-- Desktop has cycles and dangling refs -->
<!-- ShouldVerifyClosure>true</ShouldVerifyClosure -->
diff --git a/src/libraries/pkg/test/frameworkSettings/netcoreapp/settings.targets b/src/libraries/pkg/test/frameworkSettings/netcoreapp/settings.targets
index 409d2364709..ce47469c3e0 100644
--- a/src/libraries/pkg/test/frameworkSettings/netcoreapp/settings.targets
+++ b/src/libraries/pkg/test/frameworkSettings/netcoreapp/settings.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="$(ToolsDir)netfxreference.props" />
<PropertyGroup>
diff --git a/src/libraries/pkg/test/frameworkSettings/netcoreapp1.0/settings.targets b/src/libraries/pkg/test/frameworkSettings/netcoreapp1.0/settings.targets
index a13a2c419f5..ac52538bb26 100644
--- a/src/libraries/pkg/test/frameworkSettings/netcoreapp1.0/settings.targets
+++ b/src/libraries/pkg/test/frameworkSettings/netcoreapp1.0/settings.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup Condition="'$(RuntimeIdentifier)' != ''">
<IgnoredTypes Include="System.Collections.StructuralComparisons" />
<IgnoredTypes Include="System.Threading.WaitHandleExtensions" />
diff --git a/src/libraries/pkg/test/frameworkSettings/netcoreapp1.1/settings.targets b/src/libraries/pkg/test/frameworkSettings/netcoreapp1.1/settings.targets
index 6a72b925266..f1a20b8a514 100644
--- a/src/libraries/pkg/test/frameworkSettings/netcoreapp1.1/settings.targets
+++ b/src/libraries/pkg/test/frameworkSettings/netcoreapp1.1/settings.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup Condition="'$(RuntimeIdentifier)' != ''">
<IgnoredTypes Include="System.Collections.StructuralComparisons" />
<IgnoredTypes Include="System.Threading.WaitHandleExtensions" />
diff --git a/src/libraries/pkg/test/frameworkSettings/netcoreapp2.0/settings.targets b/src/libraries/pkg/test/frameworkSettings/netcoreapp2.0/settings.targets
index e36a61bdac9..4cfa63c93a5 100644
--- a/src/libraries/pkg/test/frameworkSettings/netcoreapp2.0/settings.targets
+++ b/src/libraries/pkg/test/frameworkSettings/netcoreapp2.0/settings.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup Condition="'$(RuntimeIdentifier)' != ''">
<!-- NETCoreApp2.0 had experimental versions of Span and ReadOnlySpan
which we don't match the final API nor were they ship-quality -->
diff --git a/src/libraries/pkg/test/frameworkSettings/netcoreapp3.0/settings.targets b/src/libraries/pkg/test/frameworkSettings/netcoreapp3.0/settings.targets
index c201b38104d..9a0c2d3fbd7 100644
--- a/src/libraries/pkg/test/frameworkSettings/netcoreapp3.0/settings.targets
+++ b/src/libraries/pkg/test/frameworkSettings/netcoreapp3.0/settings.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<!-- Enable targeting netcoreapp3.0 even in an older CLI -->
<NETCoreAppMaximumVersion>3.0</NETCoreAppMaximumVersion>
diff --git a/src/libraries/pkg/test/frameworkSettings/netstandard/settings.targets b/src/libraries/pkg/test/frameworkSettings/netstandard/settings.targets
index 82663d56141..af593ca8234 100644
--- a/src/libraries/pkg/test/frameworkSettings/netstandard/settings.targets
+++ b/src/libraries/pkg/test/frameworkSettings/netstandard/settings.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<Import Project="$(ToolsDir)netfxreference.props" />
<PropertyGroup>
diff --git a/src/libraries/pkg/test/packageSettings/Microsoft.NETCore.Platforms/netcoreapp2.2/settings.targets b/src/libraries/pkg/test/packageSettings/Microsoft.NETCore.Platforms/netcoreapp2.2/settings.targets
index 03d8b587170..46711d09936 100644
--- a/src/libraries/pkg/test/packageSettings/Microsoft.NETCore.Platforms/netcoreapp2.2/settings.targets
+++ b/src/libraries/pkg/test/packageSettings/Microsoft.NETCore.Platforms/netcoreapp2.2/settings.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<!-- This package will generate validation issues since we usually try to consume same-day packages from corefx that will have a higher
version than locally built packages. Validation will assume incorrectly that you are downgrading the reference which is why this error is flagged.
diff --git a/src/libraries/pkg/test/packageSettings/Microsoft.NETCore.Platforms/netcoreapp3.0/settings.targets b/src/libraries/pkg/test/packageSettings/Microsoft.NETCore.Platforms/netcoreapp3.0/settings.targets
index 03d8b587170..46711d09936 100644
--- a/src/libraries/pkg/test/packageSettings/Microsoft.NETCore.Platforms/netcoreapp3.0/settings.targets
+++ b/src/libraries/pkg/test/packageSettings/Microsoft.NETCore.Platforms/netcoreapp3.0/settings.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<!-- This package will generate validation issues since we usually try to consume same-day packages from corefx that will have a higher
version than locally built packages. Validation will assume incorrectly that you are downgrading the reference which is why this error is flagged.
diff --git a/src/libraries/pkg/test/packageSettings/Microsoft.NETCore.Targets/netcoreapp1.0/settings.targets b/src/libraries/pkg/test/packageSettings/Microsoft.NETCore.Targets/netcoreapp1.0/settings.targets
index 3056cd46cdf..ff1cfb8ab25 100644
--- a/src/libraries/pkg/test/packageSettings/Microsoft.NETCore.Targets/netcoreapp1.0/settings.targets
+++ b/src/libraries/pkg/test/packageSettings/Microsoft.NETCore.Targets/netcoreapp1.0/settings.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<!-- This package intentionally drops all runtime-package mappings from runtime.json -->
<ShouldVerifyClosure>false</ShouldVerifyClosure>
diff --git a/src/libraries/pkg/test/packageSettings/Microsoft.NETCore.Targets/netcoreapp1.1/settings.targets b/src/libraries/pkg/test/packageSettings/Microsoft.NETCore.Targets/netcoreapp1.1/settings.targets
index 3056cd46cdf..ff1cfb8ab25 100644
--- a/src/libraries/pkg/test/packageSettings/Microsoft.NETCore.Targets/netcoreapp1.1/settings.targets
+++ b/src/libraries/pkg/test/packageSettings/Microsoft.NETCore.Targets/netcoreapp1.1/settings.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<!-- This package intentionally drops all runtime-package mappings from runtime.json -->
<ShouldVerifyClosure>false</ShouldVerifyClosure>
diff --git a/src/libraries/pkg/test/packageSettings/Microsoft.NETCore.Targets/netcoreapp2.2/settings.targets b/src/libraries/pkg/test/packageSettings/Microsoft.NETCore.Targets/netcoreapp2.2/settings.targets
index 03d8b587170..46711d09936 100644
--- a/src/libraries/pkg/test/packageSettings/Microsoft.NETCore.Targets/netcoreapp2.2/settings.targets
+++ b/src/libraries/pkg/test/packageSettings/Microsoft.NETCore.Targets/netcoreapp2.2/settings.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<!-- This package will generate validation issues since we usually try to consume same-day packages from corefx that will have a higher
version than locally built packages. Validation will assume incorrectly that you are downgrading the reference which is why this error is flagged.
diff --git a/src/libraries/pkg/test/packageSettings/System.Buffers/netcoreapp1.0/workaroundDowngrade.targets b/src/libraries/pkg/test/packageSettings/System.Buffers/netcoreapp1.0/workaroundDowngrade.targets
index 1ec61540e47..183497464be 100644
--- a/src/libraries/pkg/test/packageSettings/System.Buffers/netcoreapp1.0/workaroundDowngrade.targets
+++ b/src/libraries/pkg/test/packageSettings/System.Buffers/netcoreapp1.0/workaroundDowngrade.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<!-- issue https://github.com/dotnet/corefx/issues/28551 -->
<PackageReference Include="NETStandard.Library" Version="1.6.1" />
diff --git a/src/libraries/pkg/test/packageSettings/System.Diagnostics.DiagnosticSource/netcoreapp1.0/workaroundDowngrade.targets b/src/libraries/pkg/test/packageSettings/System.Diagnostics.DiagnosticSource/netcoreapp1.0/workaroundDowngrade.targets
index 1ec61540e47..183497464be 100644
--- a/src/libraries/pkg/test/packageSettings/System.Diagnostics.DiagnosticSource/netcoreapp1.0/workaroundDowngrade.targets
+++ b/src/libraries/pkg/test/packageSettings/System.Diagnostics.DiagnosticSource/netcoreapp1.0/workaroundDowngrade.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<!-- issue https://github.com/dotnet/corefx/issues/28551 -->
<PackageReference Include="NETStandard.Library" Version="1.6.1" />
diff --git a/src/libraries/pkg/test/packageSettings/System.Diagnostics.DiagnosticSource/workaroundMissingSystemMemory.targets b/src/libraries/pkg/test/packageSettings/System.Diagnostics.DiagnosticSource/workaroundMissingSystemMemory.targets
index 4a9c853567c..fdb725fd625 100644
--- a/src/libraries/pkg/test/packageSettings/System.Diagnostics.DiagnosticSource/workaroundMissingSystemMemory.targets
+++ b/src/libraries/pkg/test/packageSettings/System.Diagnostics.DiagnosticSource/workaroundMissingSystemMemory.targets
@@ -1,10 +1,9 @@
-<?xml version="1.0" encoding="utf-8"?>
<!-- This file is a work-around and should be removed by 6/2019 (by then a fixed version of System.Memory
should be available so that System.Memory does not reference NetStandard1.X)
See Eric St John for details. -->
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup Condition="$(TargetFramework.StartsWith('netstandard1.')) OR $(TargetFramework.StartsWith('netcoreapp1.'))">
<PackageReference Include="System.Memory" Version="4.5.1" />
</ItemGroup>
diff --git a/src/libraries/pkg/test/packageSettings/System.IO.Packaging/netcoreapp1.0/workaroundDowngrade.targets b/src/libraries/pkg/test/packageSettings/System.IO.Packaging/netcoreapp1.0/workaroundDowngrade.targets
index 1ec61540e47..183497464be 100644
--- a/src/libraries/pkg/test/packageSettings/System.IO.Packaging/netcoreapp1.0/workaroundDowngrade.targets
+++ b/src/libraries/pkg/test/packageSettings/System.IO.Packaging/netcoreapp1.0/workaroundDowngrade.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<!-- issue https://github.com/dotnet/corefx/issues/28551 -->
<PackageReference Include="NETStandard.Library" Version="1.6.1" />
diff --git a/src/libraries/pkg/test/packageSettings/System.IO.Ports/netcoreapp1.0/workaroundDowngrade.targets b/src/libraries/pkg/test/packageSettings/System.IO.Ports/netcoreapp1.0/workaroundDowngrade.targets
index b678d357ccf..2a4b06900c2 100644
--- a/src/libraries/pkg/test/packageSettings/System.IO.Ports/netcoreapp1.0/workaroundDowngrade.targets
+++ b/src/libraries/pkg/test/packageSettings/System.IO.Ports/netcoreapp1.0/workaroundDowngrade.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<!-- issue https://github.com/dotnet/corefx/issues/28551 -->
<PackageReference Include="runtime.native.System.IO.Ports" Version="0.0.0" NoWarn="NU1605" />
diff --git a/src/libraries/pkg/test/packageSettings/System.Reflection.Emit.ILGeneration/netcoreapp1.0/workaroundDowngrade.targets b/src/libraries/pkg/test/packageSettings/System.Reflection.Emit.ILGeneration/netcoreapp1.0/workaroundDowngrade.targets
index 1ec61540e47..183497464be 100644
--- a/src/libraries/pkg/test/packageSettings/System.Reflection.Emit.ILGeneration/netcoreapp1.0/workaroundDowngrade.targets
+++ b/src/libraries/pkg/test/packageSettings/System.Reflection.Emit.ILGeneration/netcoreapp1.0/workaroundDowngrade.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<!-- issue https://github.com/dotnet/corefx/issues/28551 -->
<PackageReference Include="NETStandard.Library" Version="1.6.1" />
diff --git a/src/libraries/pkg/test/packageSettings/System.Reflection.Emit.Lightweight/netcoreapp1.0/workaroundDowngrade.targets b/src/libraries/pkg/test/packageSettings/System.Reflection.Emit.Lightweight/netcoreapp1.0/workaroundDowngrade.targets
index 1ec61540e47..183497464be 100644
--- a/src/libraries/pkg/test/packageSettings/System.Reflection.Emit.Lightweight/netcoreapp1.0/workaroundDowngrade.targets
+++ b/src/libraries/pkg/test/packageSettings/System.Reflection.Emit.Lightweight/netcoreapp1.0/workaroundDowngrade.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<!-- issue https://github.com/dotnet/corefx/issues/28551 -->
<PackageReference Include="NETStandard.Library" Version="1.6.1" />
diff --git a/src/libraries/pkg/test/packageSettings/System.Reflection.Emit/netcoreapp1.0/workaroundDowngrade.targets b/src/libraries/pkg/test/packageSettings/System.Reflection.Emit/netcoreapp1.0/workaroundDowngrade.targets
index 1ec61540e47..183497464be 100644
--- a/src/libraries/pkg/test/packageSettings/System.Reflection.Emit/netcoreapp1.0/workaroundDowngrade.targets
+++ b/src/libraries/pkg/test/packageSettings/System.Reflection.Emit/netcoreapp1.0/workaroundDowngrade.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<!-- issue https://github.com/dotnet/corefx/issues/28551 -->
<PackageReference Include="NETStandard.Library" Version="1.6.1" />
diff --git a/src/libraries/pkg/test/packageSettings/System.Reflection.TypeExtensions/netcoreapp1.0/workaroundDowngrade.targets b/src/libraries/pkg/test/packageSettings/System.Reflection.TypeExtensions/netcoreapp1.0/workaroundDowngrade.targets
index 1ec61540e47..183497464be 100644
--- a/src/libraries/pkg/test/packageSettings/System.Reflection.TypeExtensions/netcoreapp1.0/workaroundDowngrade.targets
+++ b/src/libraries/pkg/test/packageSettings/System.Reflection.TypeExtensions/netcoreapp1.0/workaroundDowngrade.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<!-- issue https://github.com/dotnet/corefx/issues/28551 -->
<PackageReference Include="NETStandard.Library" Version="1.6.1" />
diff --git a/src/libraries/pkg/test/packageSettings/System.Runtime.CompilerServices.Unsafe/netcoreapp1.0/workaroundDowngrade.targets b/src/libraries/pkg/test/packageSettings/System.Runtime.CompilerServices.Unsafe/netcoreapp1.0/workaroundDowngrade.targets
index 1ec61540e47..183497464be 100644
--- a/src/libraries/pkg/test/packageSettings/System.Runtime.CompilerServices.Unsafe/netcoreapp1.0/workaroundDowngrade.targets
+++ b/src/libraries/pkg/test/packageSettings/System.Runtime.CompilerServices.Unsafe/netcoreapp1.0/workaroundDowngrade.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<!-- issue https://github.com/dotnet/corefx/issues/28551 -->
<PackageReference Include="NETStandard.Library" Version="1.6.1" />
diff --git a/src/libraries/pkg/test/packageSettings/System.Runtime.WindowsRuntime/netcoreapp1.0/workaroundDowngrade.targets b/src/libraries/pkg/test/packageSettings/System.Runtime.WindowsRuntime/netcoreapp1.0/workaroundDowngrade.targets
index 1ec61540e47..183497464be 100644
--- a/src/libraries/pkg/test/packageSettings/System.Runtime.WindowsRuntime/netcoreapp1.0/workaroundDowngrade.targets
+++ b/src/libraries/pkg/test/packageSettings/System.Runtime.WindowsRuntime/netcoreapp1.0/workaroundDowngrade.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<!-- issue https://github.com/dotnet/corefx/issues/28551 -->
<PackageReference Include="NETStandard.Library" Version="1.6.1" />
diff --git a/src/libraries/pkg/test/packageSettings/System.Security.Cryptography.Cng/netcoreapp1.0/workaroundDowngrade.targets b/src/libraries/pkg/test/packageSettings/System.Security.Cryptography.Cng/netcoreapp1.0/workaroundDowngrade.targets
index 1ec61540e47..183497464be 100644
--- a/src/libraries/pkg/test/packageSettings/System.Security.Cryptography.Cng/netcoreapp1.0/workaroundDowngrade.targets
+++ b/src/libraries/pkg/test/packageSettings/System.Security.Cryptography.Cng/netcoreapp1.0/workaroundDowngrade.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<!-- issue https://github.com/dotnet/corefx/issues/28551 -->
<PackageReference Include="NETStandard.Library" Version="1.6.1" />
diff --git a/src/libraries/pkg/test/packageSettings/System.Security.Cryptography.OpenSsl/netcoreapp1.0/workaroundDowngrade.targets b/src/libraries/pkg/test/packageSettings/System.Security.Cryptography.OpenSsl/netcoreapp1.0/workaroundDowngrade.targets
index 1ec61540e47..183497464be 100644
--- a/src/libraries/pkg/test/packageSettings/System.Security.Cryptography.OpenSsl/netcoreapp1.0/workaroundDowngrade.targets
+++ b/src/libraries/pkg/test/packageSettings/System.Security.Cryptography.OpenSsl/netcoreapp1.0/workaroundDowngrade.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<!-- issue https://github.com/dotnet/corefx/issues/28551 -->
<PackageReference Include="NETStandard.Library" Version="1.6.1" />
diff --git a/src/libraries/pkg/test/packageSettings/System.Security.Cryptography.Pkcs/netcoreapp1.0/workaroundDowngrade.targets b/src/libraries/pkg/test/packageSettings/System.Security.Cryptography.Pkcs/netcoreapp1.0/workaroundDowngrade.targets
index 1ec61540e47..183497464be 100644
--- a/src/libraries/pkg/test/packageSettings/System.Security.Cryptography.Pkcs/netcoreapp1.0/workaroundDowngrade.targets
+++ b/src/libraries/pkg/test/packageSettings/System.Security.Cryptography.Pkcs/netcoreapp1.0/workaroundDowngrade.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<!-- issue https://github.com/dotnet/corefx/issues/28551 -->
<PackageReference Include="NETStandard.Library" Version="1.6.1" />
diff --git a/src/libraries/pkg/test/packageSettings/System.Security.Principal.Windows/netcoreapp1.0/workaroundDowngrade.targets b/src/libraries/pkg/test/packageSettings/System.Security.Principal.Windows/netcoreapp1.0/workaroundDowngrade.targets
index 1ec61540e47..183497464be 100644
--- a/src/libraries/pkg/test/packageSettings/System.Security.Principal.Windows/netcoreapp1.0/workaroundDowngrade.targets
+++ b/src/libraries/pkg/test/packageSettings/System.Security.Principal.Windows/netcoreapp1.0/workaroundDowngrade.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<!-- issue https://github.com/dotnet/corefx/issues/28551 -->
<PackageReference Include="NETStandard.Library" Version="1.6.1" />
diff --git a/src/libraries/pkg/test/packageSettings/System.Threading.Tasks.Extensions/netcoreapp1.0/workaroundDowngrade.targets b/src/libraries/pkg/test/packageSettings/System.Threading.Tasks.Extensions/netcoreapp1.0/workaroundDowngrade.targets
index 1ec61540e47..183497464be 100644
--- a/src/libraries/pkg/test/packageSettings/System.Threading.Tasks.Extensions/netcoreapp1.0/workaroundDowngrade.targets
+++ b/src/libraries/pkg/test/packageSettings/System.Threading.Tasks.Extensions/netcoreapp1.0/workaroundDowngrade.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<!-- issue https://github.com/dotnet/corefx/issues/28551 -->
<PackageReference Include="NETStandard.Library" Version="1.6.1" />
diff --git a/src/libraries/pkg/test/packageTest.targets b/src/libraries/pkg/test/packageTest.targets
index df40c5b022d..d0f78b37cc0 100644
--- a/src/libraries/pkg/test/packageTest.targets
+++ b/src/libraries/pkg/test/packageTest.targets
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<_targetFrameworkVersionIndex>$(TargetFramework.IndexOfAny(".-0123456789"))</_targetFrameworkVersionIndex>
diff --git a/src/libraries/pkg/test/props/Directory.Build.props b/src/libraries/pkg/test/props/Directory.Build.props
index d77113e4a87..436249c6a1c 100644
--- a/src/libraries/pkg/test/props/Directory.Build.props
+++ b/src/libraries/pkg/test/props/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<ImportDirectoryBuildTargets>false</ImportDirectoryBuildTargets>
</PropertyGroup>
diff --git a/src/libraries/pkg/test/test.msbuild b/src/libraries/pkg/test/test.msbuild
index aa3cb05f378..0c7921f69e6 100644
--- a/src/libraries/pkg/test/test.msbuild
+++ b/src/libraries/pkg/test/test.msbuild
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Restore;Test" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Restore;Test">
<ItemGroup>
<TestPackages Condition="'$(TestPackages)' != ''" Include="$(TestPackages)" />
</ItemGroup>
diff --git a/src/libraries/pkg/test/testPackages.proj b/src/libraries/pkg/test/testPackages.proj
index 067ddea48ce..466c9005e83 100644
--- a/src/libraries/pkg/test/testPackages.proj
+++ b/src/libraries/pkg/test/testPackages.proj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
<ItemGroup>
diff --git a/src/libraries/post.builds b/src/libraries/post.builds
index 5feec77d28f..2afceda4e6c 100644
--- a/src/libraries/post.builds
+++ b/src/libraries/post.builds
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="Directory.Build.props" />
<Import Project="..\Directory.Build.targets" />
diff --git a/src/libraries/pretest.builds b/src/libraries/pretest.builds
index b4946429c40..76a2004139c 100644
--- a/src/libraries/pretest.builds
+++ b/src/libraries/pretest.builds
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build">
<Import Project="Directory.Build.props" />
<PropertyGroup>
diff --git a/src/libraries/ref.builds b/src/libraries/ref.builds
index 13fb2bed1be..55aeef0d65b 100644
--- a/src/libraries/ref.builds
+++ b/src/libraries/ref.builds
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
diff --git a/src/libraries/shims/ApiCompat.proj b/src/libraries/shims/ApiCompat.proj
index 9df23e7c952..2d79ff93e99 100644
--- a/src/libraries/shims/ApiCompat.proj
+++ b/src/libraries/shims/ApiCompat.proj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" DefaultTargets="Build">
+<Project DefaultTargets="Build">
<PropertyGroup>
<!-- ApiCompat-specific build configurations for runtime-only targets -->
<BuildConfigurations>
diff --git a/src/libraries/shims/Directory.Build.props b/src/libraries/shims/Directory.Build.props
index 4561b7efd58..0ddbf9e5a8f 100644
--- a/src/libraries/shims/Directory.Build.props
+++ b/src/libraries/shims/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<!-- shared configurations between shims and apicompat -->
<BuildConfigurations>
diff --git a/src/libraries/shims/manual/Directory.Build.props b/src/libraries/shims/manual/Directory.Build.props
index b5e9ac7f4cc..c249a4fa47b 100644
--- a/src/libraries/shims/manual/Directory.Build.props
+++ b/src/libraries/shims/manual/Directory.Build.props
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<PropertyGroup>
<PackageConfigurations>
netcoreapp2.0;
diff --git a/src/libraries/shims/netfxreference.props b/src/libraries/shims/netfxreference.props
index 387f1d06b51..449cdecf3ef 100644
--- a/src/libraries/shims/netfxreference.props
+++ b/src/libraries/shims/netfxreference.props
@@ -1,4 +1,4 @@
-<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project>
<ItemGroup>
<NetFxReference Include="mscorlib">
<ExcludeFromRuntime>true</ExcludeFromRuntime>
diff --git a/src/libraries/shims/shims.proj b/src/libraries/shims/shims.proj
index 51e900d5d2c..083820478b1 100644
--- a/src/libraries/shims/shims.proj
+++ b/src/libraries/shims/shims.proj
@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" DefaultTargets="Build">
+<Project DefaultTargets="Build">
<PropertyGroup>
<PackageConfigurations>
netcoreapp2.0
diff --git a/src/libraries/src.builds b/src/libraries/src.builds
index c40822ec579..aeb419cfb05 100644
--- a/src/libraries/src.builds
+++ b/src/libraries/src.builds
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />
diff --git a/src/libraries/tests.builds b/src/libraries/tests.builds
index 9f301180396..1d8ed80cbe8 100644
--- a/src/libraries/tests.builds
+++ b/src/libraries/tests.builds
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build">
<Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), Directory.Build.props))\Directory.Build.props" />