[CLIENT] Dominion mode mentioned in Summoner Spells section

This is not a game-breaking bug bit a minor visual flaw in LoL client.

Description: "Dominion" is still listed as supported game mode in the description of some Summoner Spells. This is strange because Dominion is retired from LoL.

Steps to repeat:

1. Open Client
2. Open Profile
3. Click "Spells" tab
4. Select a Spell
5. "Dominion" mode is listed as supported game mode for some Spells

Thanks and sorry if this is a dupe ticket.

Client Version: 6.6.16_03_24_18_32 @ Windows