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

chrome/common/extensions/api/passwords_private.idl

 // Copyright 2015 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.
 
 // Use the <code>chrome.passwordsPrivate</code> API to add or remove password
 // data from the settings UI.
-[use_movable_types=true] namespace passwordsPrivate {
+namespace passwordsPrivate {
   // Pair of origin URL and login saved for that URL.
   dictionary LoginPair {
     // The human-readable origin for the URL where the password is used.
     DOMString originUrl;
 
     // The username used in conjunction with the saved password.
     DOMString username;
   };
 
   // Entry used to display a password in the settings UI.
@@ skipping 58 matching lines @@
 
     // Fired when a plaintext password has been fetched in response to a call to
     // chrome.passwordsPrivate.requestPlaintextPassword().
     //
     // |loginPair|: The LoginPair whose password was found.
     // |plaintextPassword|: The plaintext password which was retrieved.
     static void onPlaintextPasswordRetrieved(
         PlaintextPasswordEventParameters dict);
   };
 };