Updated mediawiki/extensions/Wikidata
Project: mediawiki/extensions/Wikibase  4a8921851fdb2b0b41d2a79fa03506cf5f6c0711

Remove no longer used $wgWBSettings reference

This is going to be messed up on mixed client-repo Wikis
anyway (because both Client and Repo overwrite it completely)

DEPLOYMENT: make sure $wgWBSettings isn't used in the config.

Change-Id: Id6fcd56c20bee9d1aee4a3c306d76addb7b49bc5