Revert "Localisation updates from http://translatewiki.net."

Overwrites https://gerrit.wikimedia.org/r/#/c/87180/1/TranslateGroupDescriptions.i18n.php,unified 

This reverts commit 0bc3be2c515ebacce3b3b7d85afee9572f69c1e8.

Change-Id: Ibf0682858d35f72f53e47091922410978a33b25b