code: function (el, binding, vnode) {
      let resizeListenerId = el.dataset.responsives
      delete self.resizeListeners[resizeListenerId]
    }
docs: Is called when the html element is removed from DOM
  
  @param  {object} el      html element
  @param  {object} binding the parameters of the mixin
  @param  {object} vnode   the virtual html elment