Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  9a5e0ebbca8b28c2fef1c45118320a369d4ac89b

Refactoring/optimizing SpecialUnconnectedPages

Some basic refactoring. Dropping unneeded code. Moving unused
variables into their scope.

Change-Id: I99273c175d3742ae72169d5c0c934a122f6832f3