Retire repository following the process on retiring an OpenStack
repository:
http://docs.openstack.org/infra/manual/drivers.html#remove-project-content
This removes *all* content and just leaves a single README.rst that
explains how to get the content
Depends-On: I9f4e21b44c717d11511fea48db54a52103e294b1
Change-Id: I4281697640489a779a3ef82b23174262a0baa3fc