The function IDatabase::deleteJoin of the database abstraction layer does not have a query builder replacement.

• Add DeleteQueryBuilder::join like exists on SelectQueryBuilder
• Create a new Query Builder
• Deprecate and remove the function - It could be replaced with explicit select of a primary key and delete with proper batching

Usage: https://codesearch.wmcloud.org/search/?q=%5CbdeleteJoin%5Cb&files=&excludeFiles=&repos=

In deployed code:

• In core when remove expiry from watchlist items
• OAuth
• CampaignEvents, seems also oauth handling