Remove the app launcher promo code

chrome/browser/resources/ntp4/page_list_view.js

Index: chrome/browser/resources/ntp4/page_list_view.js
diff --git a/chrome/browser/resources/ntp4/page_list_view.js b/chrome/browser/resources/ntp4/page_list_view.js
index efb31fe47c32488fb49689b591acb1ff74266eeb..370c42e138023451712e036ea1767138529f955a 100644
--- a/chrome/browser/resources/ntp4/page_list_view.js
+++ b/chrome/browser/resources/ntp4/page_list_view.js
@@ -407,7 +407,6 @@ cr.define('ntp', function() {
         this.appsLoaded_ = true;
         cr.dispatchSimpleEvent(document, 'sectionready', true, true);
       }
-      this.updateAppLauncherPromoHiddenState_();
     },
 
     /**
@@ -469,25 +468,6 @@ cr.define('ntp', function() {
     },
 
     /**
-     * Callback invoked by chrome whenever the app launcher promo pref changes.
-     * @param {boolean} show Identifies if we should show or hide the promo.
-     */
-    appLauncherPromoPrefChangeCallback: function(show) {
-      loadTimeData.overrideValues({showAppLauncherPromo: show});
-      this.updateAppLauncherPromoHiddenState_();
-    },
-
-    /**
-     * Updates the hidden state of the app launcher promo based on the page
-     * shown and load data content.
-     * @private
-     */
-    updateAppLauncherPromoHiddenState_: function() {
-      $('app-launcher-promo').hidden =
-          !loadTimeData.getBoolean('showAppLauncherPromo');
-    },
-
-    /**
      * Invoked whenever the pages in apps-page-list have changed so that
      * the Slider knows about the new elements.
      */
@@ -646,8 +626,7 @@ cr.define('ntp', function() {
     setShownPage_: function(shownPageIndex) {
       assert(shownPageIndex >= 0);
       this.shownPageIndex = shownPageIndex;
-      chrome.send('pageSelected', [this.shownPageIndex]);
-      this.updateAppLauncherPromoHiddenState_();
+      chrome.send('pageSelected', [this.shownPage, this.shownPageIndex]);
     },
 
     /**