Updated mediawiki/extensions
Project: mediawiki/extensions/CentralAuth  88f5edb8e2b5529988f96c9d3fd522c9b0c4a245

Make CentralAuthUser::deleteGlobalCookies and clearCookie static

There's no need for these to be non-static, they don't use any
non-static data or any other non-static methods.

Change-Id: I8282cf706b993c62a7ab38c9ca43cd75601c2043