Updated mediawiki/extensions
Project: mediawiki/extensions/Nostalgia  1786a189e8ede97d7ed6c221ff0b54ad72f0c5d6

Remove "$useHeadElement = true"

It doesn't do anything since I13e25cc8 in core.

Change-Id: If955dca51e2fadc43d590709691d86b30076a27a