Remove encoding header

Fixes #2996

InvenTree/stock/api.py

@@ -2,9 +2,6 @@
 JSON API for the Stock app
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from collections import OrderedDict
 from datetime import datetime, timedelta
 

InvenTree/stock/forms.py

@@ -2,9 +2,6 @@
 Django Forms for interacting with Stock app
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from InvenTree.forms import HelperForm
 
 from .models import StockItem, StockItemTracking

InvenTree/stock/models.py

@@ -2,10 +2,6 @@
 Stock database model definitions
 """
 
-
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 import os
 
 from jinja2 import Template

InvenTree/stock/serializers.py

@@ -2,9 +2,6 @@
 JSON serializers for Stock app
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from decimal import Decimal
 from datetime import datetime, timedelta
 from django.db import transaction

InvenTree/stock/test_api.py

@@ -2,9 +2,6 @@
 Unit testing for the Stock API
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 import os
 import io
 import tablib

InvenTree/stock/views.py

@@ -2,9 +2,6 @@
 Django views for interacting with Stock app
 """
 
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
 from datetime import datetime
 
 from django.views.generic import DetailView, ListView