winbindd: remove fallback to lookupsid for unknown SIDs
In wb_lookupsids_done() if a SID failed with lookupsids(), remove the
hokey retry via lookupsid().
The retry logic with going through the single sids lookup at the end
added a fake domain with an empty string. The wb_lookupsids caller
wb_sids2xids needed this, as it wasn't doing the needed error handling
itself. As wb_sids2xids has been fixed to cope, we can just fail the
lookupsids here.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>