remove ntp app install hint

chrome/browser/resources/ntp4/new_tab.js

Index: chrome/browser/resources/ntp4/new_tab.js
diff --git a/chrome/browser/resources/ntp4/new_tab.js b/chrome/browser/resources/ntp4/new_tab.js
index efd7759a0e66e347edddc80ba363502e5bd15433..aabe9d8fbe0455849330b84fcfee8e6e29da59d9 100644
--- a/chrome/browser/resources/ntp4/new_tab.js
+++ b/chrome/browser/resources/ntp4/new_tab.js
@@ -153,19 +153,10 @@ cr.define('ntp', function() {
     }
 
     var webStoreLink = loadTimeData.getString('webStoreLink');
-    if (loadTimeData.getBoolean('isWebStoreExperimentEnabled')) {
-      var url = appendParam(webStoreLink, 'utm_source', 'chrome-ntp-launcher');
-      $('chrome-web-store-href').href = url;
-      $('chrome-web-store-href').addEventListener('click',
-          onChromeWebStoreButtonClick);
-
-      $('footer-content').classList.add('enable-cws-experiment');
-    }
-
-    if (loadTimeData.getBoolean('appInstallHintEnabled')) {
-      var url = appendParam(webStoreLink, 'utm_source', 'chrome-ntp-plus-icon');
-      $('app-install-hint-template').href = url;
-    }
+    var url = appendParam(webStoreLink, 'utm_source', 'chrome-ntp-launcher');
+    $('chrome-web-store-href').href = url;
+    $('chrome-web-store-href').addEventListener('click',
+        onChromeWebStoreButtonClick);
 
     if (loadTimeData.getString('login_status_message')) {
       loginBubble = new cr.ui.Bubble;