SP

Updated the description to indicate the intent

> > Do we use AirflowModelView.delete anywhere else? Or will pk always be a DagRun.id? > > Yea, I think this is problematic because `AirflowModelView.delete` is used in several other...

If it is not being actively worked upon, I would like to take this as my first contribution to Airflow, please feel free to assign it to me.