Revert 92815998 because it breaks creation of predefined groups with django.contrib permissions

This reverts commit 92815998.

ssoauth/management/commands/ssoauth_setup_groups_and_perms.py

@@ -16,14 +16,13 @@ def get_or_create_permission(codename, create_with_name=None):
     :return: permission object
     Ensures the permissions exists. Creates it if needed.
     """
-    user_content_type = get_user_content_type()
     try:
-        perm = Permission.objects.get(codename=codename, content_type=user_content_type)
+        perm = Permission.objects.get(codename=codename)
     except Permission.DoesNotExist:
         perm = Permission.objects.create(
             codename=codename,
             name=create_with_name or codename,
-            content_type=user_content_type
+            content_type=get_user_content_type()
         )
         logger.info("Created permission: {0}".format(perm))
     return perm