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

chrome/common/extensions/api/cast_streaming_udp_transport.idl

Index: chrome/common/extensions/api/cast_streaming_udp_transport.idl
diff --git a/chrome/common/extensions/api/cast_streaming_udp_transport.idl b/chrome/common/extensions/api/cast_streaming_udp_transport.idl
index fd43a6181092747796ee3fff9e85cc8f816e1a24..8106a58f639a48cd926be0e934950c86742ffaf1 100644
--- a/chrome/common/extensions/api/cast_streaming_udp_transport.idl
+++ b/chrome/common/extensions/api/cast_streaming_udp_transport.idl
@@ -8,7 +8,7 @@
 // It is used to configure the UDP transport used in Cast session.
 //
 // Valid transport IDs are positive and non-zero.
-[use_movable_types=true]namespace cast.streaming.udpTransport {
+namespace cast.streaming.udpTransport {
   // The UDP socket address and port.
   dictionary IPEndPoint {
     DOMString address;