Clean up build configuration
Clean up build configuration

* Remove references to non-existent 'x86' solution platform
* Make sure to build 'BuildActionTelemetryTable' project

tmat/roslyn,stephentoub/roslyn,sharwell/roslyn,weltkante/roslyn,ErikSchierboom/roslyn,gafter/roslyn,tannergooding/roslyn,KirillOsenkov/roslyn,physhi/roslyn,weltkante/roslyn,eriawan/roslyn,diryboy/roslyn,panopticoncentral/roslyn,jasonmalinowski/roslyn,eriawan/roslyn,jasonmalinowski/roslyn,KevinRansom/roslyn,wvdd007/roslyn,gafter/roslyn,shyamnamboodiripad/roslyn,mavasani/roslyn,diryboy/roslyn,stephentoub/roslyn,KevinRansom/roslyn,panopticoncentral/roslyn,sharwell/roslyn,AlekseyTs/roslyn,eriawan/roslyn,bartdesmet/roslyn,shyamnamboodiripad/roslyn,wvdd007/roslyn,physhi/roslyn,panopticoncentral/roslyn,ErikSchierboom/roslyn,heejaechang/roslyn,dotnet/roslyn,AmadeusW/roslyn,AlekseyTs/roslyn,mavasani/roslyn,CyrusNajmabadi/roslyn,tannergooding/roslyn,AmadeusW/roslyn,KevinRansom/roslyn,bartdesmet/roslyn,wvdd007/roslyn,mavasani/roslyn,weltkante/roslyn,tmat/roslyn,jasonmalinowski/roslyn,dotnet/roslyn,CyrusNajmabadi/roslyn,bartdesmet/roslyn,heejaechang/roslyn,KirillOsenkov/roslyn,dotnet/roslyn,ErikSchierboom/roslyn,KirillOsenkov/roslyn,AmadeusW/roslyn,mgoertz-msft/roslyn,heejaechang/roslyn,gafter/roslyn,tmat/roslyn,mgoertz-msft/roslyn,stephentoub/roslyn,physhi/roslyn,AlekseyTs/roslyn,tannergooding/roslyn,shyamnamboodiripad/roslyn,CyrusNajmabadi/roslyn,sharwell/roslyn,diryboy/roslyn,mgoertz-msft/roslyn