Updated mediawiki/extensions
Project: mediawiki/extensions/TwnMainPage  f1455033b5543b0187846da11ece891f6b1eb177

Remove no longer needed and broken code for loading message group selector

Group selector now loads the data it needs itself. The function
mw.translate.loadMessageGroups() no longer exists and was giving JS error.

Bug: 58320
Change-Id: I93234b47f7634a2a2ac8a7bba50f13afb3bc3227