diff --git a/playground/TestPlatform.Playground/TestPlatform - Backup.Playground.csproj b/playground/TestPlatform.Playground/TestPlatform - Backup.Playground.csproj
deleted file mode 100644
index c44c4a1c44..0000000000
--- a/playground/TestPlatform.Playground/TestPlatform - Backup.Playground.csproj	
+++ /dev/null
@@ -1,41 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-  <PropertyGroup>
-    <TestPlatformRoot Condition="$(TestPlatformRoot) == ''">..\..\</TestPlatformRoot>
-    <TargetLatestRuntimePatch>true</TargetLatestRuntimePatch>
-    <!-- MSB3270 Suppress warnings about testhost being x64 (AMD64)/x86 when imported into AnyCPU (MSIL) projects. -->
-    <!-- MSB3276 Suppress warnings about conflicts between different versions of the same dependent assembly -->
-    <MSBuildWarningsAsMessages>$(MSBuildWarningsAsMessages);MSB3270;MSB3276</MSBuildWarningsAsMessages>
-  </PropertyGroup>
-
-  <Import Project="$(TestPlatformRoot)scripts/build/TestPlatform.Settings.targets" />
-  <PropertyGroup>
-    <OutputType>Exe</OutputType>
-    <TargetFrameworks>$(TargetFrameworks);net472</TargetFrameworks>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <PackageReference Include="Microsoft.CodeCoverage" Version="17.2.0" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <ProjectReference Include="..\..\src\datacollector\datacollector.csproj" />
-    <ProjectReference Include="..\..\src\Microsoft.TestPlatform.TestHostProvider\Microsoft.TestPlatform.TestHostProvider.csproj" />
-    <ProjectReference Include="..\..\src\Microsoft.TestPlatform.VsTestConsole.TranslationLayer\Microsoft.TestPlatform.VsTestConsole.TranslationLayer.csproj" />
-    <ProjectReference Include="..\..\src\testhost.x86\testhost.x86.csproj" />
-    <ProjectReference Include="..\..\src\testhost\testhost.csproj" />
-    <ProjectReference Include="..\..\src\vstest.console\vstest.console.csproj" />
-    <ProjectReference Include="..\MSTest1\MSTest1.TestAdapter.csproj" />
-  </ItemGroup>
-  <ItemGroup Condition=" $(TargetFramework.StartsWith('net4')) AND '$(OS)' != 'Windows_NT' ">
-    <Reference Include="System" />
-    <Reference Include="System.Runtime" />
-    <Reference Include="System.Xml" />
-    <Reference Include="System.Xml.Linq" />
-    <Reference Include="Microsoft.CSharp" />
-  </ItemGroup>
-
-  <Target Name="PostBuild" AfterTargets="PostBuildEvent" Condition=" '$(OS)' == 'WINDOWS_NT' ">
-    <Exec Command="xcopy /i /y /f $(MSBuildProjectDirectory)\..\..\src\vstest.console\bin\$(Configuration)\net451\ $(TargetDir)\vstest.console\&#xD;&#xA;xcopy /i /y /f $(MSBuildProjectDirectory)\..\..\src\Microsoft.TestPlatform.TestHostProvider\bin\$(Configuration)\net451\ $(TargetDir)\vstest.console\Extensions\&#xD;&#xA;REM copy net451, net47, net471, net472 and net48 testhosts&#xD;&#xA;xcopy /i /y /f $(MSBuildProjectDirectory)\..\..\src\testhost.x86\bin\$(Configuration)\net451\win7-x86 $(TargetDir)\vstest.console\TestHost\&#xD;&#xA;xcopy /i /y /f $(MSBuildProjectDirectory)\..\..\src\testhost\bin\$(Configuration)\net451\win7-x64 $(TargetDir)\vstest.console\TestHost\&#xD;&#xA;xcopy /i /y /f $(MSBuildProjectDirectory)\..\..\src\testhost.x86\bin\$(Configuration)\net47\win7-x86 $(TargetDir)\vstest.console\TestHost\&#xD;&#xA;xcopy /i /y /f $(MSBuildProjectDirectory)\..\..\src\testhost\bin\$(Configuration)\net47\win7-x64 $(TargetDir)\vstest.console\TestHost\&#xD;&#xA;xcopy /i /y /f $(MSBuildProjectDirectory)\..\..\src\testhost.x86\bin\$(Configuration)\net471\win7-x86 $(TargetDir)\vstest.console\TestHost\&#xD;&#xA;xcopy /i /y /f $(MSBuildProjectDirectory)\..\..\src\testhost\bin\$(Configuration)\net471\win7-x64 $(TargetDir)\vstest.console\TestHost\&#xD;&#xA;xcopy /i /y /f $(MSBuildProjectDirectory)\..\..\src\testhost.x86\bin\$(Configuration)\net472\win7-x86 $(TargetDir)\vstest.console\TestHost\&#xD;&#xA;xcopy /i /y /f $(MSBuildProjectDirectory)\..\..\src\testhost\bin\$(Configuration)\net472\win7-x64 $(TargetDir)\vstest.console\TestHost\&#xD;&#xA;xcopy /i /y /f $(MSBuildProjectDirectory)\..\..\src\testhost.x86\bin\$(Configuration)\net48\win7-x86 $(TargetDir)\vstest.console\TestHost\&#xD;&#xA;xcopy /i /y /f $(MSBuildProjectDirectory)\..\..\src\testhost\bin\$(Configuration)\net48\win7-x64 $(TargetDir)\vstest.console\TestHost\" />
-  </Target>
-  <Import Project="$(TestPlatformRoot)scripts\build\TestPlatform.targets" />
-</Project>