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

extensions/common/api/mime_handler_private.idl

Index: extensions/common/api/mime_handler_private.idl
diff --git a/extensions/common/api/mime_handler_private.idl b/extensions/common/api/mime_handler_private.idl
index 1e7c099e08de2ef2e30d299da75558f759ded958..dfd47be6ae974f216483dace661b0f8e4a06fa39 100644
--- a/extensions/common/api/mime_handler_private.idl
+++ b/extensions/common/api/mime_handler_private.idl
@@ -3,7 +3,7 @@
 // found in the LICENSE file.
 
 // Mime handler API.
-[nodoc, use_movable_types=true] namespace mimeHandlerPrivate {
+[nodoc] namespace mimeHandlerPrivate {
   dictionary StreamInfo {
     // The MIME type of the intercepted URL request.
     DOMString mimeType;