dev: don't require root to build a test environment (part 1)
dev: don't require root to build a test environment (part 1)

Building a test environment shouldn't require root, as already
discussed: https://github.com/crowbar/crowbar/pull/1651

Anyway, setting group ownership is unnecessary and also beyond the
scope of ./dev.

toabctl/crowbar,dirkmueller/crowbar,tserong/crowbar,rsalevsky/crowbar,SUSE-Cloud/crowbar,nkrinner/crowbar,nkrinner/crowbar,rhafer/crowbar,aspiers/crowbar,aspiers/crowbar,toabctl/crowbar,MaximilianMeister/crowbar,crowbar/crowbar,rhafer/crowbar,MaximilianMeister/crowbar,rsalevsky/crowbar,vwallfahrer/crowbar,aplanas/crowbar,tserong/crowbar,vwallfahrer/crowbar,rhafer/crowbar,mmnelemane/crowbar,crowbar/crowbar,aplanas/crowbar,mmnelemane/crowbar,dirkmueller/crowbar,SUSE-Cloud/crowbar