Remove more python2 stuff

InvenTree/build/admin.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.contrib import admin
 
 from import_export.admin import ImportExportModelAdmin

InvenTree/build/apps.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.apps import AppConfig
 
 

InvenTree/build/forms.py

@@ -1,7 +0,0 @@
-"""
-Django Forms for interacting with Build objects
-"""
-
-# -*- coding: utf-8 -*-
-
-from __future__ import unicode_literals

InvenTree/build/tasks.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from decimal import Decimal
 import logging
 

InvenTree/build/test_api.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from datetime import datetime, timedelta
 
 from django.urls import reverse

InvenTree/build/tests.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from django.test import TestCase
 from django.urls import reverse