Handle deleting category channel + log channel at once

Author: A5rocks

bot.py

@@ -1363,8 +1363,8 @@ async def on_guild_channel_delete(self, channel):
             logger.debug("Main category was deleted.")
             self.config.remove("main_category_id")
             await self.config.update()
-            return
-        elif isinstance(channel, discord.CategoryChannel):
+
+        if isinstance(channel, discord.CategoryChannel):
             return
 
         if not isinstance(channel, discord.TextChannel):