Remove tmpauth refs and unused gluster middleware

Change-Id: Ia3d5813659d49d743f91816c4c7cab57e36ed9fa
Signed-off-by: Peter Portante <peter.portante@redhat.com>
Reviewed-on: http://review.gluster.org/5076
Reviewed-by: Luis Pabon <lpabon@redhat.com>
Tested-by: Luis Pabon <lpabon@redhat.com>