1 files changed, 0 insertions, 78 deletions
diff --git a/netcore/System.Private.CoreLib/shared/System/Runtime/CompilerServices/ConfiguredCancelableAsyncEnumerable.cs b/netcore/System.Private.CoreLib/shared/System/Runtime/CompilerServices/ConfiguredCancelableAsyncEnumerable.cs
deleted file mode 100644
index 4f1bca71695..00000000000
--- a/netcore/System.Private.CoreLib/shared/System/Runtime/CompilerServices/ConfiguredCancelableAsyncEnumerable.cs
+++ /dev/null
@@ -1,78 +0,0 @@
-// 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.
-
-using System.Collections.Generic;
-using System.Runtime.InteropServices;
-using System.Threading;
-
-namespace System.Runtime.CompilerServices
-{
-    /// <summary>Provides an awaitable async enumerable that enables cancelable iteration and configured awaits.</summary>
-    [StructLayout(LayoutKind.Auto)]
-    public readonly struct ConfiguredCancelableAsyncEnumerable<T>
-    {
-        private readonly IAsyncEnumerable<T> _enumerable;
-        private readonly CancellationToken _cancellationToken;
-        private readonly bool _continueOnCapturedContext;
-
-        internal ConfiguredCancelableAsyncEnumerable(IAsyncEnumerable<T> enumerable, bool continueOnCapturedContext, CancellationToken cancellationToken)
-        {
-            _enumerable = enumerable;
-            _continueOnCapturedContext = continueOnCapturedContext;
-            _cancellationToken = cancellationToken;
-        }
-
-        /// <summary>Configures how awaits on the tasks returned from an async iteration will be performed.</summary>
-        /// <param name="continueOnCapturedContext">Whether to capture and marshal back to the current context.</param>
-        /// <returns>The configured enumerable.</returns>
-        /// <remarks>This will replace any previous value set by <see cref="ConfigureAwait(bool)"/> for this iteration.</remarks>
-        public ConfiguredCancelableAsyncEnumerable<T> ConfigureAwait(bool continueOnCapturedContext) =>
-            new ConfiguredCancelableAsyncEnumerable<T>(_enumerable, continueOnCapturedContext, _cancellationToken);
-
-        /// <summary>Sets the <see cref="CancellationToken"/> to be passed to <see cref="IAsyncEnumerable{T}.GetAsyncEnumerator(CancellationToken)"/> when iterating.</summary>
-        /// <param name="cancellationToken">The <see cref="CancellationToken"/> to use.</param>
-        /// <returns>The configured enumerable.</returns>
-        /// <remarks>This will replace any previous <see cref="CancellationToken"/> set by <see cref="WithCancellation(CancellationToken)"/> for this iteration.</remarks>
-        public ConfiguredCancelableAsyncEnumerable<T> WithCancellation(CancellationToken cancellationToken) =>
-            new ConfiguredCancelableAsyncEnumerable<T>(_enumerable, _continueOnCapturedContext, cancellationToken);
-
-        public Enumerator GetAsyncEnumerator() =>
-            // as with other "configured" awaitable-related type in CompilerServices, we don't null check to defend against
-            // misuse like `default(ConfiguredCancelableAsyncEnumerable<T>).GetAsyncEnumerator()`, which will null ref by design.
-            new Enumerator(_enumerable.GetAsyncEnumerator(_cancellationToken), _continueOnCapturedContext);
-
-        /// <summary>Provides an awaitable async enumerator that enables cancelable iteration and configured awaits.</summary>
-        [StructLayout(LayoutKind.Auto)]
-        public readonly struct Enumerator
-        {
-            private readonly IAsyncEnumerator<T> _enumerator;
-            private readonly bool _continueOnCapturedContext;
-
-            internal Enumerator(IAsyncEnumerator<T> enumerator, bool continueOnCapturedContext)
-            {
-                _enumerator = enumerator;
-                _continueOnCapturedContext = continueOnCapturedContext;
-            }
-
-            /// <summary>Advances the enumerator asynchronously to the next element of the collection.</summary>
-            /// <returns>
-            /// A <see cref="ConfiguredValueTaskAwaitable{Boolean}"/> that will complete with a result of <c>true</c>
-            /// if the enumerator was successfully advanced to the next element, or <c>false</c> if the enumerator has
-            /// passed the end of the collection.
-            /// </returns>
-            public ConfiguredValueTaskAwaitable<bool> MoveNextAsync() =>
-                _enumerator.MoveNextAsync().ConfigureAwait(_continueOnCapturedContext);
-
-            /// <summary>Gets the element in the collection at the current position of the enumerator.</summary>
-            public T Current => _enumerator.Current;
-
-            /// <summary>
-            /// Performs application-defined tasks associated with freeing, releasing, or
-            /// resetting unmanaged resources asynchronously.
-            /// </summary>
-            public ConfiguredValueTaskAwaitable DisposeAsync() =>
-                _enumerator.DisposeAsync().ConfigureAwait(_continueOnCapturedContext);
-        }
-    }
-}