Updated mediawiki/extensions
Project: mediawiki/extensions/CentralNotice  1946e3ca41693bd2c535b4f7091d256c72d2b6b8

Use proper cookie removal for the WM's current jquery-cookie version

removeCookie is not yet available in the jquery-cookie version shipped
with current MediaWiki.

jquery-cookie's removeCookie function gets added only in version 1.2.0
of jquery-cookie.

Change-Id: I3c6d2b0f79a7e4eaa14d5ba88a7accf99bdc3a26