Update db.py

Remove workaround of https://github.com/twintproject/twint/issues/597

this should fix issue https://github.com/minamotorin/twint/issues/3#issue-1125224774

https://github.com/twintproject/twint/issues/1368

Related to https://github.com/twintproject/twint/issues/1136

Related to https://github.com/twintproject/twint/issues/1371, https://github.com/twintproject/twint/issues/1136

Copyright measure

Fix https://github.com/minamotorin/twint/issues/6
Solution is from https://github.com/twintproject/twint/issues/1360#issuecomment-1060913389

I'm not sure about https://github.com/twintproject/twint/issues/831, but it seems work fine with also aiohttp_socks 0.4.1 or later.
Version limitation of aiohttp_socks was added by commit https://github.com/twintproject/twint/commit/fef94a5738146b36eba696607c9bb9de76f539a7

Related to aiohttp.client_exceptions.ClientConnectorError

Fix bug

cope with Twitter's site-change, maybe

Reference: https://github.com/twintproject/twint/issues/1344#issue-1120511999

Twintproject/twint#1335

Twintproject/twint#1320