[Extensions] Remove the "use_movable_types" entry from idl/json files

chrome/common/extensions/api/hotword_private.idl

 // Copyright 2014 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 <code>chrome.hotwordPrivate</code> API allows extensions to access and
 // mutate the preference for enabling hotword search. It also provides
 // information on whether the hotword search is available. This API provides an
 // event interface to transmit to the extension a signal that the preference fo
 // hotword search has change.
 //
 // For an FYI, visit http://goo.gl/AyHbkH
 
-[use_movable_types=true] namespace hotwordPrivate {
+namespace hotwordPrivate {
 
   dictionary StatusDetails {
     // Whether the hotword preference has been set.
     boolean enabledSet;
 
     // If the hotword extension is enabled. Will always be false if |available|
     // is false.
     boolean enabled;
 
     // Whether the hotword extension is available to be enabled
@@ skipping 156 matching lines @@
     static void onDeleteSpeakerModel();
 
     // Fired when the browser wants to find out whether the speaker model
     // exists.
     static void onSpeakerModelExists();
 
     // Fired when the microphone state changes.
     static void onMicrophoneStateChanged(boolean enabled);
   };
 };