1 files changed, 1 insertions, 3 deletions
diff --git a/src/coreclr/tools/Common/JitInterface/UnboxingMethodDescFactory.cs b/src/coreclr/tools/Common/JitInterface/UnboxingMethodDescFactory.cs
index 4f38998f5cb..457f2fa8725 100644
--- a/src/coreclr/tools/Common/JitInterface/UnboxingMethodDescFactory.cs
+++ b/src/coreclr/tools/Common/JitInterface/UnboxingMethodDescFactory.cs
@@ -1,14 +1,12 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
-using System;
 using System.Collections.Generic;
-using System.Diagnostics;
 using Internal.TypeSystem;
 
 namespace Internal.JitInterface
 {
-    internal class UnboxingMethodDescFactory : Dictionary<MethodDesc, UnboxingMethodDesc>
+    internal sealed class UnboxingMethodDescFactory : Dictionary<MethodDesc, UnboxingMethodDesc>
     {
         public UnboxingMethodDesc GetUnboxingMethod(MethodDesc method)
         {