Updated openstack/openstack
Project: openstack/keystone  d8c0c81d685a4b1b7ab2439bb140a4d3fd7c18c3
null
Remove unused db_sync from extensions

The db_sync in the extensions isn't used, either by the tests or
by keystone-manage db_sync, so remove them.

Change-Id: Ia0598e8dae81e258a05767f47525d5c11acce8db