message: Remove rubbish lib.
diff: "react-dom": "^15.4.0",
  "react-gemini-scrollbar": "matrix-org/react-gemini-scrollbar#5e97aef",
  "react-simple-popover": "matrix-org/react-popover",
  - "react-tiny-popover": "^3.2.5",
  "sanitize-html": "^1.14.1",
  "text-encoding-utf-8": "^1.0.1",
  "url": "^0.11.0",
  