Revert of bluetooth: Add device list retrieval for chrome://bluetooth-internals

chrome/browser/resources/bluetooth_internals/bluetooth_internals.js

 // Copyright 2016 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.
 
 /**
  * Javascript for bluetooth_internals.html, served from
  *     chrome://bluetooth-internals/.
  */
 
-/**
- * The implementation of AdapterClient in
- *     device/bluetooth/public/interfaces/adapter.mojom.
- */
-var AdapterClient = function() {};
-AdapterClient.prototype = {
-  /**
-   * Prints added device to console.
-   * @param {!Object} device the device that was added
-   */
-  deviceAdded: function(device) {
-    console.log('Device added');
-    console.log(device);
-  },
-
-  /**
-   * Prints removed device to console.
-   * @param {!Object} device the device that was removed
-   */
-  deviceRemoved: function(device) {
-    console.log('Device removed');
-    console.log(device);
-  }
-};
-
-(function() {
-  var adapter = null;
-  var adapterClient = null;
-  var adapterClientHandle = null;
-
-  /**
-   * TODO: Move to shared location. See crbug.com/652361.
-   * Helper to convert callback-based define() API to a promise-based API.
-   * @param {!Array<string>} moduleNames
-   * @return {!Promise}
-   */
-  function importModules(moduleNames) {
-    return new Promise(function(resolve, reject) {
-      define(moduleNames, function(var_args) {
-        resolve(Array.prototype.slice.call(arguments, 0));
-      });
-    });
-  }
-
-  /**
-   * Initializes Mojo proxies for page and Bluetooth services.
-   * @return {!Promise}
-   */
-  function initializeProxies() {
-    return importModules([
-      'content/public/renderer/frame_interfaces',
-      'device/bluetooth/public/interfaces/adapter.mojom',
-      'mojo/public/js/connection',
-    ]).then(function([frameInterfaces, bluetoothAdapter, connection]) {
-      console.log('Loaded modules');
-
-      // Hook up the instance properties.
-      AdapterClient.prototype.__proto__ =
-          bluetoothAdapter.AdapterClient.stubClass.prototype;
-
-      // Create a message pipe and bind one end to client
-      // implementation.
-      adapterClient = new AdapterClient();
-      adapterClientHandle = connection.bindStubDerivedImpl(adapterClient);
-
-      adapter = connection.bindHandleToProxy(
-          frameInterfaces.getInterface(bluetoothAdapter.Adapter.name),
-          bluetoothAdapter.Adapter);
-
-      adapter.setClient(adapterClientHandle);
-    });
-  }
-
-  document.addEventListener('DOMContentLoaded', function() {
-    initializeProxies()
-      .then(function() { return adapter.getDevices(); })
-      .then(function(response) { console.log(response.devices); });
-  });
-})();
+document.addEventListener('DOMContentLoaded', function() {
+  console.log('Welcome to Bluetooth Internals.');
+});