Make help links inside signin box labels non bold

chrome/browser/resources/sync_setup_overlay.css

 /* Copyright (c) 2012 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. */
 
 /* TODO(jhawkins): Organize these by page. */
 
 #sync-setup-overlay * h4 {
   margin: 5px 0;
 }
 
@@ skipping 442 matching lines @@
 .signin-box strong {
   color: #222;
   display: block;
 }
 
 .signin-box label {
   display: block;
   font-weight: bold;
 }
 
+/* The help links inside the signin box labels should use a normal font. */
+.signin-box label a {
+  font-weight: normal;
+}
+
 /* Sign in miscellaneous. */
 
 .signin-box .throbber {
   float: right;
 }
 
 html[dir='rtl'] .signin-box .throbber {
   float: left;
 }
 
@@ skipping 21 matching lines @@
 }
 
 .signin-box .help-link:visited {
   color: white !important;
 }
 
 .signin-box .help-link:hover {
   color: white !important;
   opacity: .7;
 }