Always install altai-installer from RPM

Change-Id: I14375348f4968d40cb727a9fc3ee8467a404ace8
Drop legacy environment variables

Change-Id: I560891ecce18af1c3904a5bf3159d235c3ded5ef
Do not check odb

Change-Id: I4290962840bf05848a3908323741772aa3935f29