remove leftover regex dependancy

files/helpers/regex.py

@@ -1,6 +1,5 @@
 import random
 import re
-import regex
 from random import choice, choices
 from typing import List, Optional, Union
 

requirements.txt

@@ -23,7 +23,6 @@ pyotp
 pywebpush
 qrcode
 redis
-regex
 requests
 SQLAlchemy
 tinycss2