[Clean-up] Remove some dead code for handling Webstore sign-in.

chrome/test/data/extensions/api_test/webstore_private/common.js

 // 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.
 
 // The id of an extension we're using for install tests.
 var extensionId = "enfkhcelefdadlmkffamgdlgplcionje";
 
 // The id of an app we're using for install tests.
 var appId = "iladmdjkfniedhfhcfoefgojhgaiaccc";
 
@@ skipping 78 matching lines @@
               assertEq(undefined, result);
 
               whileInstalled();
 
               chrome.test.runWithUserGesture(callbackPass(function() {
                 chrome.management.uninstall(extensionId, {}, callbackPass());
               }));
             }));
       }));
 }
-
-function getContinueUrl(callback) {
-  chrome.test.getConfig(function(config) {
-    callback('http://www.example.com:PORT/continue'
-                 .replace(/PORT/, config.spawnedTestServer.port));
-  });
-}
-
-function expectSignInFailure(error, forced_continue_url) {
-  getContinueUrl(function(continue_url) {
-    if (forced_continue_url !== undefined)
-      continue_url = forced_continue_url;
-
-    chrome.test.runWithUserGesture(function() {
-      chrome.webstorePrivate.signIn(continue_url, callbackFail(error));
-    });
-  });
-}
-
-function expectUserIsAlreadySignedIn() {
-  getContinueUrl(function(continue_url) {
-    chrome.test.runWithUserGesture(function() {
-      chrome.webstorePrivate.signIn(continue_url, callbackPass());
-    });
-  });
-}