chore(gae): delete old region tags in iap/js/poll.js (#13195)

Author: eapl-gemugami

appengine/standard/iap/js/poll.js

@@ -1,11 +1,11 @@
 // Copyright 2017 Google LLC
-
+//
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
-
+//
 //     http://www.apache.org/licenses/LICENSE-2.0
-
+//
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -21,13 +21,11 @@ function getStatus() {
     if (response.ok) {
       return response.text();
     }
-    // [START handle_error]
     // [START gae_handle_error]
     if (response.status === 401) {
       statusElm.innerHTML = 'Login stale. <input type="button" value="Refresh" onclick="sessionRefreshClicked();"/>';
     }
     // [END gae_handle_error]
-    // [END handle_error]
     else {
       statusElm.innerHTML = response.statusText;
     }
@@ -43,7 +41,6 @@ function getStatus() {
 getStatus();
 setInterval(getStatus, 10000); // 10 seconds
 
-// [START refresh_session]
 // [START gae_refresh_session]
 var iapSessionRefreshWindow = null;
 
@@ -65,7 +62,7 @@ function checkSessionRefresh() {
           headers: {
               'X-Requested-With': 'XMLHttpRequest'
           }
-.then((response) => {
+    .then((response) => {
       // Checking if browser has a session for the requested app
       if (response.status === 401) {
         // No new session detected. Try to get a session again
@@ -82,4 +79,3 @@ function checkSessionRefresh() {
   }
 }
 // [END gae_refresh_session]
-// [END refresh_session]