message: remove removed handlers
diff: "onmouseout": {
  "comment": "/**\r\n * Fires when the user moves the mouse pointer outside the boundaries of the object.\r\n * @param ev The mouse event.\r\n */"
  },
  - "onmousewheel": {
  - "comment": "/**\r\n * Fires when the wheel button is rotated.\r\n * @param ev The mouse event\r\n */"
  - },
  "onvolumechange": {
  "comment": "/**\r\n * Occurs when the volume is changed, or playback is muted or unmuted.\r\n * @param ev The event.\r\n */"
  },
  },
  "onemptied": {
  "comment": "/**\r\n * Occurs when the media element is reset to its initial state.\r\n * @param ev The event.\r\n */"
  - },
  - "onselectionchange": {
  - "comment": "/**\r\n * Fires when the selection state of a document changes.\r\n * @param ev The event.\r\n */"
  }
  }
  }
  