Copy build outputs to the output directory for Roslyn.csproj

Failure to do this means the project system gets confused and will
invoke msbuild even if it doesn't have to.

src/Deployment/Roslyn.csproj

@@ -17,8 +17,6 @@
     <IncludeAssemblyInVSIXContainer>false</IncludeAssemblyInVSIXContainer>
     <IncludeDebugSymbolsInVSIXContainer>false</IncludeDebugSymbolsInVSIXContainer>
     <IncludeDebugSymbolsInLocalVSIXDeployment>false</IncludeDebugSymbolsInLocalVSIXDeployment>
-    <CopyBuildOutputToOutputDirectory>false</CopyBuildOutputToOutputDirectory>
-    <CopyOutputSymbolsToOutputDirectory>false</CopyOutputSymbolsToOutputDirectory>
     <ImportVSSDKTargets>true</ImportVSSDKTargets>
     <CreateVsixContainer>True</CreateVsixContainer>
     <DeployExtension>False</DeployExtension>