Per T259771 and https://www.mediawiki.org/wiki/Version_lifecycle, the updater only supports updates from two LTS versions ago. This means that to update to 1.42 the admin from 1.34 or before, the administrator of the wiki needs to update to 1.35 or 1.39 first.
As such, the code related to updates made in release 1.34 can be removed from GlobalBlockingSchemaHooks along with the associated SQL files.
Acceptance criteria
- Schema updates from 1.34 and before in GlobalBlocking should be removed.