Revert "spec: start/enable glusterd"

This reverts commit 1701ecc3b9d9573da41f66a7e5a493a1317d03db.
Should be done via cluster level.

Change-Id: I32fb3247213cc99484a442e4df91910bd196695e
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>