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 36ea7a3d74)

tools/droiddoc/templates-sdk/assets/css/default.css

@@ -2507,6 +2507,9 @@ pre#codesample-block {
   background:transparent;
   border:none;
 }
+pre#codesample-block a.number {
+  display:none;
+}
 pre#codesample-block .code-line:hover {
   background:#e7e7e7;
 }

tools/droiddoc/templates-sdk/assets/js/docs.js

@@ -2802,6 +2802,12 @@ function init_default_samples_navtree(toroot) {
   $.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();