clean up javaObjectID reference from m_idToObject on finalization
clean up javaObjectID reference from m_idToObject on finalization

This fixes a small memory leak from java objects being passed from java to javascript and then being garbage collected

NativeScript/android-runtime,NativeScript/android-runtime,NativeScript/android-runtime,NativeScript/android-runtime,NativeScript/android-runtime,NativeScript/android-runtime,NativeScript/android-runtime