Updated mediawiki/skins
Project: mediawiki/skins/BlueSky  519da24a062ee7794639b25d7895732b50d03d3c

Removed more analytics (external) JS code.

If and when a site wants these kind of things, they should be implemented
as a separate extension or extensions instead of being hard-coded into a
skin. There are many cases in which you don't want to load any external
assets at all.

Change-Id: Ie5b7774b0ad34942703df8e1d075f41e15db9245