Remove commented out stuff

src/VisualStudio/Core/Test/ServicesVisualStudioTest.vbproj

@@ -145,16 +145,6 @@
     <Reference Include="System.Xml.Linq" />
     <Reference Include="WindowsBase" />
   </ItemGroup>
-  <!--<Target Name="AddShellImmutable15" Condition="'$(VisualStudioVersion)' == '15.0'" BeforeTargets="ResolveAssemblyReferences">
-    --><!-- we want this to only be added for Dev15 builds, but the project system doesn't like us having conditional
-         attributes on Reference nodes in regular item groups; if the condition fails you get yellow exclamation points
-         in the solution explorer since it doesn't think it resolved. By making this a target, we work around that issue. --><!--
-    <ItemGroup>
-      <Reference Include="Microsoft.VisualStudio.Shell.Immutable.15.0, Version=15.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
-        <Private>false</Private>
-      </Reference>
-    </ItemGroup>
-  </Target>-->
   <ItemGroup>
     <Import Include="System.Xml.Linq" />
     <Import Include="Xunit" />