Remove unused imports

Author: stopnoanime

oioioi/notifications/server/auth.py

@@ -1,5 +1,4 @@
 import logging
-from typing import Optional
 
 import aiohttp
 from cachetools import TTLCache

oioioi/notifications/server/queue.py

@@ -1,6 +1,5 @@
 import logging
 from collections.abc import Awaitable, Callable
-from typing import Optional
 
 import aio_pika