remove coding pragma. it's not needed since python 3.x

allianceauth/groupmanagement/migrations/0001_initial.py

@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # Generated by Django 1.10.1 on 2016-09-05 21:39
 from __future__ import unicode_literals
 

allianceauth/groupmanagement/migrations/0002_auto_20160906_2354.py

@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # Generated by Django 1.10.1 on 2016-09-06 23:54
 from __future__ import unicode_literals
 

allianceauth/groupmanagement/migrations/0003_default_groups.py

@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # Generated by Django 1.10.1 on 2016-09-09 23:22
 from __future__ import unicode_literals
 

allianceauth/groupmanagement/migrations/0004_authgroup.py

@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # Generated by Django 1.10.2 on 2016-12-04 10:25
 from __future__ import unicode_literals
 

allianceauth/groupmanagement/migrations/0005_authgroup_public.py

@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # Generated by Django 1.10.5 on 2017-02-04 06:11
 from __future__ import unicode_literals
 

allianceauth/groupmanagement/migrations/0006_request_groups_perm.py

@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # Generated by Django 1.10.5 on 2017-02-04 07:17
 from __future__ import unicode_literals
 

allianceauth/groupmanagement/migrations/0007_on_delete.py

@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # Generated by Django 1.11.5 on 2017-09-28 02:16
 from __future__ import unicode_literals
 

allianceauth/groupmanagement/migrations/0008_remove_authgroup_permissions.py

@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # Generated by Django 1.11.10 on 2018-02-23 23:09
 from __future__ import unicode_literals