Updated mediawiki/extensions/Wikidata
Project: mediawiki/extensions/Wikibase  a7c58e515778f0f6f467c601113c0bb73aa7afcf

Drop pointless null check and type hint

It's impossible to be null after a new call, right?

Change-Id: I59f374a371ba3b84f55377f7121b836fca0ecb9c