fixup! 336142c324ecc993dcacc90b7304cd9d89a3bac7

Remove old censor rule routes. edit, update and destroy are required
until we migrate the routes to standard RESTful routes.
Remove redundant hidden fields

Now that the form submits to a URL containing the parent object’s id
these are no longer required

See:
  - 259a0fd588e198d2a826ef4ac09284c610005387
  - d5c7e08d58dc5ad52f16eccd9c456543503e4360