def delete(self, req, flavor_id, id):
        context = req.environ['nova.context']
        db.api.instance_type_extra_specs_delete(context, flavor_id, id)
Deletes an existing extra spec
dataset/ETHPy150Open nii-cloud/dodai-compute/nova/api/openstack/contrib/flavorextraspecs.py/FlavorExtraSpecsController.delete