This includes:
- Changing the default unconfigured behaviour of Wikibase to use the cache backed formatters (as if both settings were ∞)
- Remove the config variables from Wikibase & code looking at the vars (default to the new route)
The settings will be removed from wmf production in T213713 once this step is complete.
The Wikibase config vars are:
- tmpMaxPropertyIdForNewItemIdHtmlFormatter
- tmpMaxItemIdForNewItemIdHtmlFormatter