Move Autofill Payments integration checkbox to the sync settings page.

chrome/browser/resources/options/sync_setup_overlay.html

 <div id="sync-setup-overlay" class="page" hidden>
   <div class="close-button"></div>
   <div id="sync-setup-configure" hidden>
     <div id="confirm-sync-preferences">
       <h1 i18n-content="confirmSyncPreferences"></h1>
       <div id="sync-instructions-container" class="content-area">
         <span i18n-content="chooseDataTypesInstructions"></span>
         <a id="encryption-help-link" target="_blank"
             i18n-values="href:syncEverythingHelpURL" i18n-content="learnMore">
         </a>
@@ skipping 88 matching lines @@
               </div>
               <div id="wifi-credentials-item" class="sync-type-checkbox checkbox">
                 <label>
                   <input id="wifi-credentials-checkbox" type="checkbox">
                   <span i18n-content="wifiCredentials" il8n-values="title:wifiCredentials">
                   </span>
                 </label>
               </div>
             </div>
           </div>
+          <div id="payments-integration-setting-area" class="checkbox">
+            <label>
+              <input id="payments-integration-checkbox" type="checkbox">
+              <span i18n-content="enablePaymentsIntegration"></span>
+            </label>
+            <a i18n-values="href:autofillHelpURL" target="_blank"
+                i18n-content="learnMore"></a>
+          </div>
           <div id="customize-sync-encryption-new">
             <hr>
             <h4 i18n-content="encryptionSectionTitle"></h4>
             <div id="encryption-section-message"
                 i18n-content="encryptionSectionMessage"></div>
             <div id="sync-new-encryption-section-container">
               <div class="radio">
                 <label>
                   <input id="basic-encryption-option" name="encrypt-new"
                       type="radio" value="full">
@@ skipping 110 matching lines @@
       </div>
 </if>
     </div>
     <div class="action-area button-strip">
       <button id="stop-syncing-cancel" i18n-content="cancel">
       <button id="stop-syncing-ok" class="default-button"
           i18n-content="stopSyncingConfirm">
     </div>
   </div>
 </div>