gtk/gtk.go
func (v *Assistant) RemoveActionWidget(child IWidget) {
	C.gtk_assistant_remove_action_widget(v.native(), child.toWidget())
}
func (v *Assistant) RemoveActionWidget(child IWidget) {
	C.gtk_assistant_remove_action_widget(v.native(), child.toWidget())
}
// RemoveActionWidget is a wrapper around gtk_assistant_remove_action_widget().