Remove references to IsNewAvatarMenu since the flag was removed.

chrome/browser/signin/signin_promo.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/signin/signin_promo.h"
 
 #include "base/prefs/pref_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
@@ skipping 179 matching lines @@
   return GURL(url);
 }
 
 GURL GetReauthURL(Profile* profile, const std::string& account_id) {
   AccountInfo info = AccountTrackerServiceFactory::GetForProfile(profile)
                          ->GetAccountInfo(account_id);
   return GetReauthURLWithEmail(info.email);
 }
 
 GURL GetReauthURLWithEmail(const std::string& email) {
-  signin_metrics::Source source = switches::IsNewAvatarMenu() ?
-      signin_metrics::SOURCE_REAUTH : signin_metrics::SOURCE_SETTINGS;
-
   GURL url = signin::GetPromoURL(
-      source, true /* auto_close */,
-      switches::IsNewAvatarMenu() /* is_constrained */);
+      signin_metrics::SOURCE_REAUTH, true /* auto_close */,
+      true /* is_constrained */);
 
   url = net::AppendQueryParameter(url, "email", email);
   url = net::AppendQueryParameter(url, "validateEmail", "1");
   return net::AppendQueryParameter(url, "readOnlyEmail", "1");
 }
 
 GURL GetNextPageURLForPromoURL(const GURL& url) {
   std::string value;
   if (net::GetValueForKeyInQuery(url, kSignInPromoQueryKeyContinue, &value)) {
     GURL continue_url = GURL(value);
@@ skipping 48 matching lines @@
 
 void RegisterProfilePrefs(
     user_prefs::PrefRegistrySyncable* registry) {
   registry->RegisterIntegerPref(prefs::kSignInPromoStartupCount, 0);
   registry->RegisterBooleanPref(prefs::kSignInPromoUserSkipped, false);
   registry->RegisterBooleanPref(prefs::kSignInPromoShowOnFirstRunAllowed, true);
   registry->RegisterBooleanPref(prefs::kSignInPromoShowNTPBubble, false);
 }
 
 }  // namespace signin