split up removal of obsolete jobs in _mergeGroups to keep _findErasures from having to handle jobs which we already know will not be applied
split up removal of obsolete jobs in _mergeGroups to keep _findErasures
from having to handle jobs which we already know will not be applied

sassoftware/conary,sassoftware/conary,sassoftware/conary,sassoftware/conary,sassoftware/conary