chore(deps): remove rehype-attr dependency. (#274)

Author: jaywcjlove

website/package.json

@@ -27,7 +27,6 @@
     "react-native-web": "0.17.5",
     "react-redux": "7.2.5",
     "react-router-dom": "5.3.0",
-    "rehype-attr": "2.0.6",
     "rehype-rewrite": "3.0.4",
     "uiw": "4.7.16"
   },