Limit legacy jobs to stable branches
Limit legacy jobs to stable branches

monasca-persister Java implementation has been deprecated. We stop
building and publishing Java binary with Ussuri and do it only on stable
branches.

Change-Id: Icfeb442639154122eafa635417091d5de29c8e3e

openstack/monasca-persister,openstack/monasca-persister,openstack/monasca-persister