Zuul: Remove project name
Zuul: Remove project name

Zuul no longer requires the project-name for in-repo configuration.
Omitting it makes forking or renaming projects easier.

Change-Id: Ib7e4376a62c2f32277a12a3397d5e76c988efaf7

openstack/tripleo-puppet-elements,openstack/tripleo-puppet-elements