Updated mediawiki/skins
Project: mediawiki/skins/Vector  768ba62ad32458b3d8aae4180f264c6370da949f

Vector: Remove compatibility for old variant menu HTML

Removing backwards-compatibility CSS from an earlier change.

Follow-up to Idf43d77dccff83ad81db776f3262e0ef12d25c92.

Change-Id: I2817c6e9eb52ffc785a04bb9d23b0802a553fd45