A long time ago, we created repos on the git farm for the use of
Zuul. We put those in /var/lib/git/zuul. They were not added
to the cgit index, so were generally not visible.
E.g., /var/lib/git/zuul/openstack/nova.git
We no longer use them, and we now want to create repos in the
zuul namespace, E.g., /var/lib/git/zuul/project-config.git.
Therefore we need to tell jeepyb to stop creating repos in the
zuul directory and additionally manually remove the repos from
the git servers.
Change-Id: Ibb72bc5e8a21195e829f55c5bea242ca69c6fceb
aaa6de7541