Use the commands module instead of checks for permission decorators (#5463)

Co-authored-by: Flame442 <34169552+Flame442@users.noreply.github.com>

redbot/cogs/mod/abc.py

@@ -1,5 +1,5 @@
 from abc import ABC, abstractmethod
-from typing import List, Tuple, Optional
+from typing import Optional
 
 import discord
 from redbot.core import Config, commands