Removed active_roles

The UI isn't using this feature at the moment so we're going to remove
it for 3.0, and probably bring it back in 3.1, potentially in different
ways depending on UI needs then.

awx/api/serializers.py

@@ -318,9 +318,6 @@ class BaseSerializer(serializers.ModelSerializer):
                 summary_fields['modified_by'][field] = getattr(obj.modified_by, field)
 
         # RBAC summary fields
-        request = self.context.get('request', None)
-        if request and isinstance(obj, ResourceMixin) and request.user.is_authenticated():
-            summary_fields['active_roles'] = obj.get_permissions(request.user)
         roles = {}
         for field in obj._meta.get_fields():
             if type(field) is ImplicitRoleField:
@@ -1524,7 +1521,6 @@ class ResourceAccessListElementSerializer(UserSerializer):
 
         if 'summary_fields' not in ret:
             ret['summary_fields'] = {}
-        ret['summary_fields']['active_roles'] = get_roles_on_resource(obj, user)
 
         def format_role_perm(role):
             role_dict = { 'id': role.id, 'name': role.name, 'description': role.description}