Remove obsolete dependencies

main.py

@@ -2,11 +2,10 @@
 import dotenv
 import lightbulb
 import hikari
-import dataset
 import asyncio
 import importlib
 import sys
-from models import create_tables, Alert, Blacklist, Notification, Item
+from models import create_tables, Alert
 from logging import info
 from yahoo import YahooAuctionsChecker
 from mercari import MercariChecker

storechecker.py

@@ -1,14 +1,13 @@
 from abc import ABC, abstractmethod
 from dataclasses import dataclass
 from datetime import datetime
-from models import Alert, Blacklist, Item, Notification
+from models import Alert, Item, Notification
 from typing import Optional
-import peewee
 from repositories import ItemRepository
 import aiohttp
 from logging import info, warning
 from lightbulb import BotApp
-from hikari import Embed, Color, Message
+from hikari import Embed, Color
 
 @dataclass
 class AbstractItem(ABC):

yahoo.py

@@ -1,13 +1,9 @@
 from dataclasses import dataclass
-import aiohttp
-import json 
 import math
-from logging import info, error
+from logging import error
 from hikari import Color
 import math
 
-import pytz
-
 from storechecker import AlertChecker, AbstractItem
 
 @dataclass
@@ -18,7 +14,6 @@ class YahooAuctionItem(AbstractItem):
     buyout_price: int = 0
     title: str = ''
     image_url: str = ''
-    end_time: datetime = None
 
     @property
     def url(self) -> str: