remove comment

test/ArgumentForwardingTests/ArgumentForwardingTests.cs

@@ -25,10 +25,6 @@ namespace Microsoft.DotNet.Tests.ArgumentForwarding
 
         public ArgumentForwardingTests()
         {
-//            Environment.SetEnvironmentVariable(
-//                Constants.MSBUILD_EXE_PATH,
-//                Path.Combine(new RepoDirectoriesProvider().Stage2Sdk, "MSBuild.dll"));
-
             // This test has a dependency on an argument reflector
             // Make sure it's been binplaced properly
             FindAndEnsureReflectorPresent();