remove unnecessary files

Author: lanlanlee2008

MicrosoftAspNetOutputCache.msbuild

@@ -5,9 +5,6 @@
     <AssemblyProject Include="src\OutputCacheModuleAsync\Microsoft.AspNet.OutputCache.OutputCacheModuleAsync.csproj" />
     <AssemblyProject Include="test\CustomOutputCacheProvider\Microsoft.AspNet.OutputCache.CustomOutputCacheProvider.csproj" />
   </ItemGroup>
-  <ItemGroup Condition="'$(BuildCoreOnly)' != 'true'">
-    <AssemblyProject Include="test\Microsoft.AspNet.OutputCache.CustomOutputCacheProvider.Test\Microsoft.AspNet.OutputCache.CustomOutputCacheProvider.Test.csproj" />
-  </ItemGroup>
   <ItemGroup>
     <PackageProject Include="src\Packages\Packages.csproj" />
   </ItemGroup>

src/packages/CustomOutputCacheProvider.nupkg/Microsoft.AspNet.OutputCache.CustomOutputCacheProvider.nuproj

@@ -19,7 +19,6 @@
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' " />
   <ItemGroup>
     <NuGetProject Include="OutputCacheModuleAsync.nupkg\Microsoft.AspNet.OutputCache.OutputCacheModuleAsync.nuproj" />
-    <NuGetProject Include="CustomOutputCacheProvider.nupkg\Microsoft.AspNet.OutputCache.CustomOutputCacheProvider.nuproj" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <Target Name="Build">