gists: Remove gist_type from update method in model. #4243

We do not allow to change the gist type from public to private or vice versa.
Therefore there is no need to provide a ability in the model to do it.

rhodecode/controllers/admin/gists.py

@@ -298,7 +298,6 @@ class GistsController(BaseController):
                 description=schema_data['description'],
                 owner=c.gist.owner,
                 gist_mapping=schema_data['nodes'],
-                gist_type=schema_data['gist_type'],
                 lifetime=schema_data['lifetime'],
                 gist_acl_level=schema_data['gist_acl_level']
             )