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.

Change-Id: I11c3df6d6c7a9a2e74be938b0f0ec704e71eb8d4
(cherry picked from commit 36ea7a3d74c68d62a5d081401b887e848370f6d8)
diff --git a/tools/droiddoc/templates-sdk/assets/js/docs.js b/tools/droiddoc/templates-sdk/assets/js/docs.js
index f249a04..12221eb 100644
--- a/tools/droiddoc/templates-sdk/assets/js/docs.js
+++ b/tools/droiddoc/templates-sdk/assets/js/docs.js
@@ -2802,6 +2802,12 @@
   $.getScript(toRoot + 'samples_navtree_data.js', function(data, textStatus, jqxhr) {
       // when the file is loaded, initialize the tree
       if(jqxhr.status === 200) {
+          // hack to remove the "about the samples" link then put it back in
+          // after we nuke the list to remove the dummy static list of samples
+          var $firstLi = $("#nav.samples-nav > li:first-child").clone();
+          $("#nav.samples-nav").empty();
+          $("#nav.samples-nav").append($firstLi);
+
           init_google_navtree2("nav.samples-nav", SAMPLES_NAVTREE_DATA);
           highlightSidenav();
           resizeNav();