docs: Removed navigation heading for Develop > Preview

Change-Id: Id6b86346bf5bcb562c167d48f2e8b3b73d94e0de
diff --git a/tools/droiddoc/templates-sdk/assets/js/docs.js b/tools/droiddoc/templates-sdk/assets/js/docs.js
index d88c0e6..1550b61 100644
--- a/tools/droiddoc/templates-sdk/assets/js/docs.js
+++ b/tools/droiddoc/templates-sdk/assets/js/docs.js
@@ -202,8 +202,6 @@
       subNavEl.find("li.google > a").addClass("selected");
     } else if ($("body").hasClass("samples")) {
       subNavEl.find("li.samples > a").addClass("selected");
-    } else if ($("body").hasClass("preview")) {
-      subNavEl.find("li.preview > a").addClass("selected");
     } else {
       parentNavEl.removeClass('has-subnav').addClass("selected");
     }
@@ -2361,37 +2359,6 @@
             }
           }
 
-          // Search for Preview Guides
-          for (var i=0; i<PREVIEW_RESOURCES.length; i++) {
-            // current search comparison, with counters for tag and title,
-            // used later to improve ranking
-            var s = PREVIEW_RESOURCES[i];
-            s.matched_tag = 0;
-            s.matched_title = 0;
-            var matched = false;
-
-            // Check if query matches any tags; work backwards toward 1 to assist ranking
-            for (var j = s.keywords.length - 1; j >= 0; j--) {
-              // it matches a tag
-              if (s.keywords[j].toLowerCase().indexOf(queryStr) == 0) {
-                matched = true;
-                s.matched_tag = j + 1; // add 1 to index position
-              }
-            }
-            // Check if query matches the doc title, but only for current language
-            if (s.lang == currentLang) {
-              // if query matches the doc title
-              if (s.title.toLowerCase().indexOf(queryStr) == 0) {
-                matched = true;
-                s.matched_title = 1;
-              }
-            }
-            if (matched) {
-              gDocsMatches[matchedCountDocs] = s;
-              matchedCountDocs++;
-            }
-          }
-
           // Rank/sort all the matched pages
           rank_autocomplete_doc_results(text, gDocsMatches);
         }
@@ -3747,7 +3714,7 @@
 
     return $el;
   }
-  
+
   function createResponsiveFlowColumn(cardSize) {
     var cardWidth = parseInt(cardSize.match(/(\d+)/)[1], 10);
     var column = $('<div>').addClass('col-' + (cardWidth / 3) + 'of6');
@@ -3788,7 +3755,7 @@
 
       var cardSize = cardSizes[j++ % cardSizes.length];
       cardSize = cardSize.replace(/^\s+|\s+$/,'');
-      
+
       var column = createResponsiveFlowColumn(cardSize).appendTo(cardParent);
 
       // A stack has a third dimension which is the number of stacked items
diff --git a/tools/droiddoc/templates-sdk/components/masthead.cs b/tools/droiddoc/templates-sdk/components/masthead.cs
index 838ddbe..fc39cf7 100644
--- a/tools/droiddoc/templates-sdk/components/masthead.cs
+++ b/tools/droiddoc/templates-sdk/components/masthead.cs
@@ -230,9 +230,6 @@
             <a class="dac-nav-link" href="<?cs var:toroot ?>samples/index.html">Samples</a>
           </li>
           <?cs /if ?>
-          <li class="dac-nav-item preview">
-            <a class="dac-nav-link" href="<?cs var:toroot ?>preview/index.html">Preview</a>
-          </li>
         </ul>
       </li>
       <li class="dac-nav-item distribute">
diff --git a/tools/droiddoc/templates-sdk/customizations.cs b/tools/droiddoc/templates-sdk/customizations.cs
index aaef8ed..cf9534e 100644
--- a/tools/droiddoc/templates-sdk/customizations.cs
+++ b/tools/droiddoc/templates-sdk/customizations.cs
@@ -10,7 +10,7 @@
   <div id="body-content">
     <div>
 <?cs /def ?>
-<?cs 
+<?cs
 def:sdk_nav() ?>
   <div class="wrap clearfix" id="body-content"><div class="cols">
     <div class="col-4 dac-toggle dac-mobile" id="side-nav" itemscope itemtype="http://schema.org/SiteNavigationElement">
@@ -79,23 +79,6 @@
     </script>
 <?cs /def ?><?cs
 
-def:preview_nav() ?>
-  <div class="wrap clearfix" id="body-content"><div class="cols">
-    <div class="col-4 dac-toggle dac-mobile" id="side-nav" itemscope itemtype="http://schema.org/SiteNavigationElement">
-      <?cs call:mobile_nav_toggle() ?>
-      <div class="dac-toggle-content" id="devdoc-nav">
-        <div class="scroll-pane">
-<?cs include:"../../../../frameworks/base/docs/html/preview/preview_toc.cs" ?>
-        </div>
-      </div>
-    </div> <!-- end side-nav -->
-    <script>
-      $(document).ready(function() {
-        scrollIntoView("devdoc-nav");
-        });
-    </script>
-<?cs /def ?><?cs
-
 def:essentials_nav() ?>
   <div class="wrap clearfix" id="body-content"><div class="cols">
     <div class="col-3 dac-toggle dac-mobile" id="side-nav" itemscope itemtype="http://schema.org/SiteNavigationElement">
@@ -297,7 +280,7 @@
       </div>
       <script type="text/javascript">
        showGoogleRefTree();
-    
+
       </script>
     </div> <!-- end side-nav -->
     <script>
@@ -528,7 +511,7 @@
       call:fullpage() ?><?cs
     elif:nonavpage ?><?cs
       call:no_nav() ?><?cs
-    elif:guide || reference || samples || downloads ?><?cs      
+    elif:guide || reference || samples || downloads ?><?cs
       call:ndk_nav() ?><?cs
     else ?><?cs
       call:default_left_nav() ?> <?cs
@@ -550,8 +533,6 @@
       call:google_nav() ?><?cs
     elif:samples ?><?cs
       call:samples_nav() ?><?cs
-    elif:preview ?><?cs
-      call:preview_nav() ?><?cs
     elif:distribute ?><?cs
       if:googleplay ?><?cs
         call:googleplay_nav() ?><?cs
diff --git a/tools/droiddoc/templates-sdk/docpage.cs b/tools/droiddoc/templates-sdk/docpage.cs
index 668105b..07c292c 100644
--- a/tools/droiddoc/templates-sdk/docpage.cs
+++ b/tools/droiddoc/templates-sdk/docpage.cs
@@ -13,10 +13,9 @@
     if:reference ?> reference<?cs /if ?><?cs
     if:downloads ?> downloads<?cs /if ?><?cs
   else ?><?cs
-    if:(guide||develop||training||reference||tools||sdk||google||samples||preview) ?>develop<?cs
+    if:(guide||develop||training||reference||tools||sdk||google||samples) ?>develop<?cs
       if:guide ?> guide<?cs /if ?><?cs
       if:samples ?> samples<?cs /if ?><?cs
-      if:preview ?> preview<?cs /if ?><?cs
     elif:(distribute||googleplay||essentials||users||engage||monetize||disttools||stories||analyze) ?>distribute<?cs
       if:googleplay ?> googleplay<?cs /if ?><?cs
       if:essentials ?> essentials<?cs /if ?><?cs