chore: python3 only

apps/kassa/models.py

@@ -1,4 +1,3 @@
-from __future__ import unicode_literals
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
 

apps/kassa/utils.py

@@ -1,6 +1,4 @@
 # coding: utf-8
-from __future__ import unicode_literals
-
 from django.conf import settings
 import datetime
 import phonenumbers

apps/kassa/views.py

@@ -1,5 +1,4 @@
 # coding: utf-8
-from __future__ import unicode_literals
 from itertools import groupby
 import json
 from django.utils import timezone