Updated mediawiki/extensions
Project: mediawiki/extensions/CollapsibleVector  3570f50c344163f71603c91e604798bfaca97759

Remove i18n file

* Removes unused i18n file that is used for mediawiki 1.22 or below.

Change-Id: I75c1b58f4b235ae5ee3138975bfc7f1875ae8386