Player's Rank IDs should be removed when Rank is deleted

[Atdit]

Describe the feature you'd like
When a rank is removed, all the players which had that rank previously should lose the rank id in their ranks list.

Usefulness of the feature
Redundant rank ids of deleted ranks wouldn't be in the player's rank list anymore.

Additional context
I'm not sure if this is a bug report or a feature request, so I decided to just put it as feature request.

Screenshots:

Player's rank list after adding a rank

Rank list

Rank list after deleting the rank

Player's rank list after deleting the rank