Remove search::ShouldShowGoogleLocalNTP ("google_local_ntp" field trial flag)

chrome/browser/search/local_ntp_source.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/search/local_ntp_source.h"
 
 #include <stddef.h>
 
 #include <memory>
 
@@ skipping 130 matching lines @@
   AddString(translated_strings.get(), "title", IDS_NEW_TAB_TITLE);
   if (is_google)
     AddGoogleSearchboxPlaceholderString(translated_strings.get());
 
   return translated_strings;
 }
 
 // Returns a JS dictionary of configuration data for the local NTP.
 std::string GetConfigData(Profile* profile) {
   base::DictionaryValue config_data;
-  bool is_google = DefaultSearchProviderIsGoogle(profile) &&
-                   search::ShouldShowGoogleLocalNTP();
+  bool is_google = DefaultSearchProviderIsGoogle(profile);
   config_data.Set("translatedStrings",
                   GetTranslatedStrings(is_google).release());
   config_data.SetBoolean("isGooglePage", is_google);
   config_data.SetBoolean("useIcons", IsIconNTPEnabled());
 
   // Serialize the dictionary.
   std::string js_text;
   JSONStringValueSerializer serializer(&js_text);
   serializer.Serialize(config_data);
 
@@ skipping 104 matching lines @@
     }
   }
   return false;
 }
 
 std::string LocalNtpSource::GetContentSecurityPolicyChildSrc() const {
   // Allow embedding of most visited iframes.
   return base::StringPrintf("child-src %s;",
                             chrome::kChromeSearchMostVisitedUrl);
 }