Room garbage collection #15575
Description
This issue has been migrated from #15575.
As an admin I want that all content of a room is deleted when a room is removed for that there is no orphaned events/messages/media and I can keep storage under control as well as comply with legal requirements.
- Deleting a room should delete all of its contents (events/media)
- This should work for local rooms as well as remote rooms that comply with the spec