chore: drop Python 2 support (#5315)

Author: khvn26

api/app/settings/common.py

@@ -13,10 +13,8 @@
 import importlib.util
 import json
 import os
-import sys
 import warnings
 from datetime import datetime, time, timedelta
-from importlib import reload
 
 import dj_database_url  # type: ignore[import-untyped]
 import prometheus_client
@@ -68,10 +66,6 @@
 
 INTERNAL_IPS = ["127.0.0.1"]
 
-if sys.version[0] == "2":
-    reload(sys)
-    sys.setdefaultencoding("utf-8")  # type: ignore[attr-defined]
-
 # Application definition
 
 INSTALLED_APPS = [