Remove more python2 stuff

InvenTree/plugin/admin.py

@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
 
 from django.contrib import admin
 

InvenTree/plugin/apps.py

@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
 
 import logging
 

InvenTree/plugin/base/locate/api.py

@@ -1,8 +1,5 @@
 """API for location plugins"""
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from rest_framework import permissions
 from rest_framework.exceptions import ParseError, NotFound
 from rest_framework.response import Response

InvenTree/plugin/builtin/integration/test_core_notifications.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from plugin.models import NotificationUserSetting
 from part.test_part import BaseNotificationIntegrationTest
 from plugin.builtin.integration.core_notifications import CoreNotificationsPlugin

InvenTree/plugin/test_api.py

@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
 
 from django.urls import reverse
 

InvenTree/plugin/views.py

@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
 
 from django.conf import settings