javsacript/api: Don't remove an rpc from the outstanding rpc queue when the stream is closed.
javsacript/api: Don't remove an rpc from the outstanding rpc queue when
the stream is closed.

Change-Id: I86411ca2ecadaee8b6fdb0c433a81e0773f62943

vanadium/js,vanadium/js,vanadium/js,vanadium/js