Updated mediawiki/extensions
Project: mediawiki/extensions/Wikidata  ce1d7d619f659dfc37a73bf5cb43694011aa949f

remove tracking branch for submodules

We want to stop gerrit from autoupdating them, while we
change how stuff is organized.

Change-Id: Idbdcf9398e830cb2f5d5a3b7e4ccae2a4aa18df6