make autoflake more aggressive & fix some lint

hotdog/bot.py

@@ -203,7 +203,6 @@ class Bot:
         )
 
     async def _run_timers(self) -> NoReturn:
-        client = self.client
         await asyncio.sleep(2)
         while True:
             await asyncio.sleep(0.2)

hotdog/command/covid.py

@@ -8,7 +8,7 @@ from typing import *
 
 import requests
 
-from ..functions import localizedtz, react, reply
+from ..functions import localizedtz, reply
 from ..models import Job, Message
 from ..tz import cest
 

hotdog/command/dm.py

@@ -1,6 +1,6 @@
 from random import choice
 
-from ..functions import react, reply
+from ..functions import reply
 from ..models import Message
 
 HELP = """

hotdog/command/urlinfo_/imdb.py

@@ -148,7 +148,7 @@ async def extractor(info):
         info.extracted.rating_count = ld["aggregateRating"]["ratingCount"]
 
 
-async def handle(message, url, info):
+async def handle(message: Message, url, info):
     ex = clone(info.extracted)
     image_title = f"Poster for {ex.title} ({ex.published:%Y})"
     hosted_image = await import_image(