Remove deprecated Builder.project_root
Remove deprecated Builder.project_root

DataDog/omnibus-ruby,DataDog/omnibus-ruby,chef/omnibus,Scalr/omnibus,rhass/omnibus,ashhher3/omnibus,intfrr/omnibus,intfrr/omnibus,higanworks/omnibus,DataDog/omnibus-ruby,hugosato/omnibus,ashhher3/omnibus,Altiscale/omnibus,sh9189/omnibus,sh9189/omnibus,lvfeng1130/omnibus,pskrz/omnibus,mattray/omnibus,chef/omnibus,lvfeng1130/omnibus,servebox/omnibus,Scalr/omnibus,hugosato/omnibus,sh9189/omnibus,strangelittlemonkey/omnibus,3ofcoins/chef-omnibus,3ofcoins/chef-omnibus,pskrz/omnibus,szechyjs/omnibus,intfrr/omnibus,strangelittlemonkey/omnibus,pskrz/omnibus,lvfeng1130/omnibus,strangelittlemonkey/omnibus,jamesn/omnibus,szechyjs/omnibus,servebox/omnibus,rapid7/omnibus,higanworks/omnibus,Scalr/omnibus,jamesn/omnibus,jamesn/omnibus,servebox/omnibus,rhass/omnibus,higanworks/omnibus,adamleff/omnibus,adamleff/omnibus,Altiscale/omnibus,rapid7/omnibus,3ofcoins/chef-omnibus,ashhher3/omnibus,chef/omnibus,mattray/omnibus,adamleff/omnibus,hugosato/omnibus,rhass/omnibus,mattray/omnibus,szechyjs/omnibus,rapid7/omnibus,Altiscale/omnibus