gtk/window.go
func (v *Window) RemoveMnemonic(keyval uint, target *Widget) {
	C.gtk_window_remove_mnemonic(v.native(), C.guint(keyval), target.native())
}
func (v *Window) RemoveMnemonic(keyval uint, target *Widget) {
	C.gtk_window_remove_mnemonic(v.native(), C.guint(keyval), target.native())
}
// RemoveMnemonic is a wrapper around gtk_window_remove_mnemonic().