Remove broken notification for starlingx
Remove broken notification for starlingx

The OpenDev rename missed the stx repos due to the regex, and
feedback by starlingx folks that this is nice - the notifications were
too much noise.

So, remove the broken notifications.

Change-Id: I3757ca85b64b12c90741a8d5075f59ddb65d549f

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