Updated mediawiki/extensions
Project: mediawiki/extensions/CirrusSearch  080d9e78bc9533f61af98790a89c28969a323918

SearchUpdate cleanups for CirrusSearch

SearchUpdate hook no longer exists since I2063fe05, so don't bother
registering for it. Also return true for textAlreadyUpdatedForIndex()
since we handle all our text processing in getTextFromContent()

Change-Id: I87a5b8cc4603d02327759d95842bd22f76692f18