do not set ceph_release to dummy
do not set ceph_release to dummy

When we're deploying a dev branch.

Signed-off-by: Patrick Donnelly <d35c2028e065409a3eff47e1b4cba347a9379b4b@redhat.com>

ceph/ceph-ansible,fgal/ceph-ansible,fgal/ceph-ansible,ceph/ceph-ansible