In the context of the parent task, we created the functionality to iterate through all the articles of a wiki and check them for link suggestions.
This was enabled for a first set of wikis: fr, es, fa, arz, cs, pt, and id via the GELinkRecommendationsRefreshByIteratingThroughAllTitles configuration option. So far, we have not reeived any negative feedback and it has led to a lot more suggestions in those wikis without making any of the risk-predicting metrics noticeably worse.
Since it doesn't seem to cause any problems, let's enable it on all wikis.
Acceptance criteria:
- actually enable the iterative mode for all wikis
- clean up the per-topic mode related code