Updated mediawiki/extensions
Project: mediawiki/extensions/ContentTranslation  453d9a42d91bcb0c54d938d4c91a9d83be58848c

Remove the old section id clean up code

Now that we have new segmenter in place and that ensure valid section
ids, this code is not required

Change-Id: Ie9f9999521d5eb3434e96cf65cc0b9455418eba1