We never finished puppeting the OpenStack wiki, and if we do manage
to get it under configuration management in the future it will
likely not use Puppet anyway. The dev server is already gone, and
deployment has been explicitly disabled for the other, so let's go
ahead and remove the references here and then we should be able to
retire the separate Puppet module we've been hosting.
Change-Id: I3f9ada3eb3d6f16545270135fab994ac460be94b
89c4fd9b3d