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

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

redbot/core/commands/commands.py

@@ -24,7 +24,6 @@ from typing import (
     Union,
     MutableMapping,
     TYPE_CHECKING,
-    cast,
 )
 
 import discord

redbot/core/commands/context.py

@@ -11,7 +11,7 @@ from discord.ext.commands import Context as DPYContext
 from .requires import PermState
 from ..utils.chat_formatting import box, text_to_file
 from ..utils.predicates import MessagePredicate
-from ..utils import can_user_react_in, common_filters
+from ..utils import can_user_react_in
 
 if TYPE_CHECKING:
     from .commands import Command

redbot/core/commands/converter.py

@@ -11,7 +11,6 @@ from datetime import timedelta
 from dateutil.relativedelta import relativedelta
 from typing import (
     TYPE_CHECKING,
-    Generic,
     Optional,
     Optional as NoParseOptional,
     Tuple,
@@ -22,7 +21,6 @@ from typing import (
     Union as UserInputOptional,
 )
 
-import discord
 from discord.ext import commands as dpy_commands
 from discord.ext.commands import BadArgument