Delete GlobalPermissions model (migrations)

It is an old model which doesn't exist anymore in kfet.models module.

This adds its missing DeleteModel in migrations.

kfet/migrations/0062_delete_globalpermissions.py

@@ -0,0 +1,14 @@
+# -*- coding: utf-8 -*-
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ('kfet', '0061_add_perms_config'),
+    ]
+
+    operations = [
+        migrations.DeleteModel(
+            name='GlobalPermissions',
+        ),
+    ]