[V3] Actually add compatibility with 3.5.1 (#1155)

* Fix 3.5.1 issue with TYPE_CHECKING

* I hate you

* Smarter...

redbot/core/rpc.py

@@ -1,5 +1,3 @@
-from typing import NewType, TYPE_CHECKING
-
 import asyncio
 
 from aiohttp.web import Application
@@ -7,6 +5,8 @@ from aiohttp_json_rpc import JsonRpc
 
 import logging
 
+from .utils import TYPE_CHECKING, NewType
+
 if TYPE_CHECKING:
     from .bot import Red