End project gating for Karbor
End project gating for Karbor

Karbor is being retired in the Wallaby cycle. As
one of the first steps, we will end project gating
for all Karbor's deliverables.

Change-Id: I7bb496f262ffbd53283f1475f0fe01adedc1ae44

openstack-infra/project-config,openstack-infra/project-config