code: func (s *APIServer) deleteProxy(auth ClientI, w http.ResponseWriter, r *http.Request, p httprouter.Params, version string) (interface{}, error) {
  	name := p.ByName("name")
  	if name == "" {
  		return nil, trace.BadParameter("missing proxy name")
  	}
  	err := auth.DeleteProxy(name)
  	if err != nil {
  		return nil, trace.Wrap(err)
  	}
  	return message("ok"), nil
  }
docs: // deleteProxy deletes proxy