The wiki-dev03.openstack.org server was a test deployment working
through completing the puppetry for our Mediawiki environment. Since
it's on a now-EoL Ubuntu version, and that configuration management
work has stalled, delete this test server from our inventory rather
than needlessly consuming resources and an ESM entitlement.
Also clean up an old disabled entry for wiki-dev01.openstack.org
which no longer exists (it was a predecessor of this server). Leave
the templating for wiki-dev* in place for now in case we decide to
launch a replacement.
Change-Id: I5beed4dde8e4e84d92f510f8726f8443daf774c1
f469f1189e