remove BuildArch to sync with ARM fixes
remove BuildArch to sync with ARM fixes

DataDog/omnibus-ruby,Altiscale/omnibus,hugosato/omnibus,chef/omnibus,szechyjs/omnibus,Scalr/omnibus,Scalr/omnibus,hugosato/omnibus,3ofcoins/chef-omnibus,higanworks/omnibus,higanworks/omnibus,jamesn/omnibus,DataDog/omnibus-ruby,higanworks/omnibus,szechyjs/omnibus,mattray/omnibus,strangelittlemonkey/omnibus,mattray/omnibus,DataDog/omnibus-ruby,jamesn/omnibus,rapid7/omnibus,Altiscale/omnibus,szechyjs/omnibus,jamesn/omnibus,ashhher3/omnibus,chef/omnibus,mattray/omnibus,3ofcoins/chef-omnibus,strangelittlemonkey/omnibus,ashhher3/omnibus,ashhher3/omnibus,hugosato/omnibus,Altiscale/omnibus,3ofcoins/chef-omnibus,Scalr/omnibus,chef/omnibus,rapid7/omnibus,strangelittlemonkey/omnibus,rapid7/omnibus