remove comment.

src/Features/Core/Portable/Features.csproj

@@ -9,6 +9,10 @@
     <AssemblyName>Microsoft.CodeAnalysis.Features</AssemblyName>
     <TargetFramework>netstandard1.3</TargetFramework>
   </PropertyGroup>
+  <ItemGroup>
+    <Compile Remove="JsonStringDetector\**" />
+    <EmbeddedResource Remove="JsonStringDetector\**" />
+  </ItemGroup>
   <ItemGroup Label="Project References">
     <ProjectReference Include="..\..\..\Compilers\Core\Portable\CodeAnalysis.csproj" />
     <ProjectReference Include="..\..\..\Workspaces\Core\Portable\Workspaces.csproj" />
@@ -109,8 +113,5 @@
   <ItemGroup>
     <PackageReference Include="System.Reflection" Version="$(SystemReflectionVersion)" />
   </ItemGroup>
-  <ItemGroup>
-    <Folder Include="JsonStringDetector\" />
-  </ItemGroup>
   <Import Project="..\..\..\Compilers\Core\AnalyzerDriver\AnalyzerDriver.projitems" Label="Shared" />
 </Project>
\ No newline at end of file