am 70120d0b: am 36ea7a3d: remove the dummy sidenav from samples before populating the real list. Also make the line numbers hidden before they get moved to avoid some jankyness during load.

* commit '70120d0bffcce16c3c94120fde3cd2c495e5027d':
  remove the dummy sidenav from samples before populating the real list. Also make the line numbers hidden before they get moved to avoid some jankyness during load.