cleanup

app/formatters.py

@@ -23,6 +23,7 @@ from notifications_utils.timezones import convert_utc_to_local_timezone
 
 from app.utils.time import parse_naive_dt
 
+
 def convert_to_boolean(value):
     if isinstance(value, str):
         if value.lower() in ['t', 'true', 'on', 'yes', '1']:

app/main/views/service_settings.py

@@ -1,7 +1,6 @@
 from collections import OrderedDict
 from datetime import datetime
 
-import dateutil
 from flask import (
     abort,
     current_app,

app/models/user.py

@@ -1,6 +1,5 @@
 from datetime import datetime
 
-import dateutil
 from flask import abort, request, session
 from flask_login import AnonymousUserMixin, UserMixin, login_user, logout_user
 from notifications_python_client.errors import HTTPError