Revert "Split off wikidata into a separate LVS service 'text-varnish'"

err: Could not retrieve catalog from remote server: Error 400 on SERVER: Resource type class doesn't exist at /var/lib/git/operations/puppet/manifests/role/cache.pp:783 on node sq61.wikimedia.org

This reverts commit 45ec46df73d2610fe10b1ac87219a4eab0711f56.

Change-Id: Ife3609f1d697725d9acc325498277369d3c1734e