am 4a557dc9: am f1435b73: 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 '4a557dc958028c46e7fa5d6b1d4661bfda8c7f23':
  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.