No longer qualify the MSBuild warnAsError flag
No longer qualify the MSBuild warnAsError flag

tmat/roslyn,gafter/roslyn,jmarolf/roslyn,KevinRansom/roslyn,dotnet/roslyn,mavasani/roslyn,mavasani/roslyn,genlu/roslyn,gafter/roslyn,abock/roslyn,AlekseyTs/roslyn,shyamnamboodiripad/roslyn,shyamnamboodiripad/roslyn,weltkante/roslyn,AmadeusW/roslyn,abock/roslyn,sharwell/roslyn,physhi/roslyn,davkean/roslyn,dotnet/roslyn,jmarolf/roslyn,CyrusNajmabadi/roslyn,KirillOsenkov/roslyn,tannergooding/roslyn,aelij/roslyn,ErikSchierboom/roslyn,eriawan/roslyn,KirillOsenkov/roslyn,CyrusNajmabadi/roslyn,panopticoncentral/roslyn,jasonmalinowski/roslyn,aelij/roslyn,wvdd007/roslyn,davkean/roslyn,physhi/roslyn,AlekseyTs/roslyn,weltkante/roslyn,heejaechang/roslyn,genlu/roslyn,panopticoncentral/roslyn,diryboy/roslyn,sharwell/roslyn,bartdesmet/roslyn,genlu/roslyn,KevinRansom/roslyn,stephentoub/roslyn,dotnet/roslyn,mgoertz-msft/roslyn,agocke/roslyn,AmadeusW/roslyn,eriawan/roslyn,tannergooding/roslyn,jasonmalinowski/roslyn,bartdesmet/roslyn,aelij/roslyn,bartdesmet/roslyn,ErikSchierboom/roslyn,abock/roslyn,reaction1989/roslyn,tmat/roslyn,heejaechang/roslyn,brettfo/roslyn,reaction1989/roslyn,brettfo/roslyn,gafter/roslyn,KevinRansom/roslyn,mgoertz-msft/roslyn,heejaechang/roslyn,stephentoub/roslyn,eriawan/roslyn,wvdd007/roslyn,sharwell/roslyn,stephentoub/roslyn,AmadeusW/roslyn,jasonmalinowski/roslyn,reaction1989/roslyn,mavasani/roslyn,physhi/roslyn,diryboy/roslyn,KirillOsenkov/roslyn,jmarolf/roslyn,AlekseyTs/roslyn,ErikSchierboom/roslyn,wvdd007/roslyn,tannergooding/roslyn,CyrusNajmabadi/roslyn,tmat/roslyn,mgoertz-msft/roslyn,agocke/roslyn,brettfo/roslyn,diryboy/roslyn,davkean/roslyn,agocke/roslyn,weltkante/roslyn,panopticoncentral/roslyn,shyamnamboodiripad/roslyn