Updated mediawiki/extensions
Project: mediawiki/extensions/GettingStarted  ae2081d2ae16847473172ab18accb004f00ed382

Remove no longer used check_blue images

Follow up to c74d76c6bc2c454d04a214bc6b3e4679124d15c6

Change-Id: Iaeb78eb8232584afe78a596a35903796cd8d3032