Stop deploying extension in BuildAndTest.proj
Stop deploying extension in BuildAndTest.proj

Fixes #8498

2ed2262 caused CIBuild's to start deploying extensions
because properties are not inherited by nested MSBuild
instances. Actually pass down DeployExtension=false.

nguerrera/roslyn,balajikris/roslyn,aelij/roslyn,AmadeusW/roslyn,jamesqo/roslyn,AArnott/roslyn,wvdd007/roslyn,MichalStrehovsky/roslyn,Maxwe11/roslyn,paulvanbrenk/roslyn,SeriaWei/roslyn,mgoertz-msft/roslyn,antonssonj/roslyn,AArnott/roslyn,mattwar/roslyn,tvand7093/roslyn,CyrusNajmabadi/roslyn,ErikSchierboom/roslyn,MattWindsor91/roslyn,eriawan/roslyn,KevinH-MS/roslyn,srivatsn/roslyn,stephentoub/roslyn,CaptainHayashi/roslyn,MattWindsor91/roslyn,genlu/roslyn,Shiney/roslyn,michalhosala/roslyn,tmat/roslyn,CyrusNajmabadi/roslyn,tvand7093/roslyn,physhi/roslyn,VSadov/roslyn,jhendrixMSFT/roslyn,wvdd007/roslyn,TyOverby/roslyn,eriawan/roslyn,wvdd007/roslyn,xoofx/roslyn,shyamnamboodiripad/roslyn,MatthieuMEZIL/roslyn,abock/roslyn,brettfo/roslyn,reaction1989/roslyn,heejaechang/roslyn,khyperia/roslyn,tannergooding/roslyn,mattscheffer/roslyn,zooba/roslyn,mmitche/roslyn,sharadagrawal/Roslyn,natidea/roslyn,akrisiun/roslyn,MichalStrehovsky/roslyn,mattscheffer/roslyn,AnthonyDGreen/roslyn,srivatsn/roslyn,AnthonyDGreen/roslyn,MatthieuMEZIL/roslyn,jamesqo/roslyn,jeffanders/roslyn,Shiney/roslyn,kelltrick/roslyn,lorcanmooney/roslyn,Hosch250/roslyn,cston/roslyn,jasonmalinowski/roslyn,Maxwe11/roslyn,KiloBravoLima/roslyn,cston/roslyn,dotnet/roslyn,agocke/roslyn,jasonmalinowski/roslyn,xasx/roslyn,KirillOsenkov/roslyn,gafter/roslyn,physhi/roslyn,davkean/roslyn,shyamnamboodiripad/roslyn,DustinCampbell/roslyn,khyperia/roslyn,heejaechang/roslyn,robinsedlaczek/roslyn,michalhosala/roslyn,vslsnap/roslyn,kelltrick/roslyn,swaroop-sridhar/roslyn,ErikSchierboom/roslyn,vslsnap/roslyn,ericfe-ms/roslyn,ljw1004/roslyn,srivatsn/roslyn,amcasey/roslyn,swaroop-sridhar/roslyn,ericfe-ms/roslyn,drognanar/roslyn,Giftednewt/roslyn,Pvlerick/roslyn,sharwell/roslyn,xoofx/roslyn,ValentinRueda/roslyn,AlekseyTs/roslyn,jaredpar/roslyn,nguerrera/roslyn,basoundr/roslyn,stephentoub/roslyn,ErikSchierboom/roslyn,mgoertz-msft/roslyn,natidea/roslyn,AdamSpeight2008/roslyn-AdamSpeight2008,agocke/roslyn,MatthieuMEZIL/roslyn,natidea/roslyn,eriawan/roslyn,mgoertz-msft/roslyn,davkean/roslyn,KiloBravoLima/roslyn,Pvlerick/roslyn,Giftednewt/roslyn,tmat/roslyn,KevinRansom/roslyn,jmarolf/roslyn,leppie/roslyn,Giftednewt/roslyn,mattwar/roslyn,mmitche/roslyn,AmadeusW/roslyn,dotnet/roslyn,SeriaWei/roslyn,dpoeschl/roslyn,jkotas/roslyn,tvand7093/roslyn,pdelvo/roslyn,jcouv/roslyn,jmarolf/roslyn,KiloBravoLima/roslyn,khellang/roslyn,orthoxerox/roslyn,rgani/roslyn,akrisiun/roslyn,CaptainHayashi/roslyn,a-ctor/roslyn,xasx/roslyn,jaredpar/roslyn,ljw1004/roslyn,paulvanbrenk/roslyn,drognanar/roslyn,kelltrick/roslyn,shyamnamboodiripad/roslyn,sharadagrawal/Roslyn,xoofx/roslyn,dpoeschl/roslyn,antonssonj/roslyn,weltkante/roslyn,a-ctor/roslyn,budcribar/roslyn,ValentinRueda/roslyn,jkotas/roslyn,genlu/roslyn,tmeschter/roslyn,bkoelman/roslyn,abock/roslyn,aelij/roslyn,bartdesmet/roslyn,vcsjones/roslyn,Hosch250/roslyn,antonssonj/roslyn,balajikris/roslyn,aelij/roslyn,budcribar/roslyn,zooba/roslyn,bbarry/roslyn,physhi/roslyn,panopticoncentral/roslyn,robinsedlaczek/roslyn,weltkante/roslyn,natgla/roslyn,agocke/roslyn,DustinCampbell/roslyn,cston/roslyn,jaredpar/roslyn,Maxwe11/roslyn,rgani/roslyn,lorcanmooney/roslyn,balajikris/roslyn,bbarry/roslyn,amcasey/roslyn,jeffanders/roslyn,michalhosala/roslyn,orthoxerox/roslyn,pdelvo/roslyn,akrisiun/roslyn,OmarTawfik/roslyn,Shiney/roslyn,tmat/roslyn,leppie/roslyn,TyOverby/roslyn,vslsnap/roslyn,bkoelman/roslyn,MattWindsor91/roslyn,ericfe-ms/roslyn,vcsjones/roslyn,khyperia/roslyn,mattscheffer/roslyn,jhendrixMSFT/roslyn,KevinH-MS/roslyn,jkotas/roslyn,MattWindsor91/roslyn,KirillOsenkov/roslyn,Hosch250/roslyn,bartdesmet/roslyn,gafter/roslyn,jeffanders/roslyn,natgla/roslyn,AdamSpeight2008/roslyn-AdamSpeight2008,basoundr/roslyn,khellang/roslyn,AdamSpeight2008/roslyn-AdamSpeight2008,swaroop-sridhar/roslyn,dotnet/roslyn,brettfo/roslyn,bbarry/roslyn,khellang/roslyn,sharadagrawal/Roslyn,budcribar/roslyn,genlu/roslyn,sharwell/roslyn,gafter/roslyn,yeaicc/roslyn,AnthonyDGreen/roslyn,AlekseyTs/roslyn,tmeschter/roslyn,mattwar/roslyn,basoundr/roslyn,bkoelman/roslyn,AlekseyTs/roslyn,ValentinRueda/roslyn,tannergooding/roslyn,mavasani/roslyn,heejaechang/roslyn,orthoxerox/roslyn,VSadov/roslyn,DustinCampbell/roslyn,xasx/roslyn,tannergooding/roslyn,abock/roslyn,stephentoub/roslyn,CyrusNajmabadi/roslyn,MichalStrehovsky/roslyn,pdelvo/roslyn,reaction1989/roslyn,sharwell/roslyn,diryboy/roslyn,bartdesmet/roslyn,ljw1004/roslyn,lorcanmooney/roslyn,SeriaWei/roslyn,brettfo/roslyn,yeaicc/roslyn,KirillOsenkov/roslyn,nguerrera/roslyn,KevinH-MS/roslyn,jhendrixMSFT/roslyn,natgla/roslyn,jcouv/roslyn,zooba/roslyn,TyOverby/roslyn,panopticoncentral/roslyn,leppie/roslyn,mavasani/roslyn,drognanar/roslyn,diryboy/roslyn,OmarTawfik/roslyn,mavasani/roslyn,KevinRansom/roslyn,jmarolf/roslyn,jasonmalinowski/roslyn,vcsjones/roslyn,paulvanbrenk/roslyn,OmarTawfik/roslyn,KevinRansom/roslyn,diryboy/roslyn,Pvlerick/roslyn,CaptainHayashi/roslyn,jcouv/roslyn,amcasey/roslyn,AArnott/roslyn,davkean/roslyn,VSadov/roslyn,tmeschter/roslyn,jamesqo/roslyn,dpoeschl/roslyn,AmadeusW/roslyn,a-ctor/roslyn,yeaicc/roslyn,mmitche/roslyn,panopticoncentral/roslyn,robinsedlaczek/roslyn,weltkante/roslyn,rgani/roslyn,reaction1989/roslyn