networking-{onos,ovn}: Remove branch filter
networking-{onos,ovn}: Remove branch filter

These projects have no stable branches and if they will get them, the
jobs should most likely run there, so remove the branch filter that
filters out all stable branches.

Change-Id: Ic1236f21f316871f7cfbd8331a6584165cbd9479

openstack-infra/project-config,openstack-infra/project-config,noorul/os-project-config,Tesora/tesora-project-config,dongwenjuan/project-config,dongwenjuan/project-config,noorul/os-project-config,Tesora/tesora-project-config