How to Hide PAU, Universal Accessibility Admin Menus

function plt_hide_pau_accesibilidad_universal_menus() {
	//Hide "PAU".
	remove_menu_page('pau');
	//Hide "PAU → PAU".
	remove_submenu_page('pau', 'pau');
	//Hide "PAU → Settings".
	remove_submenu_page('pau', 'pau-settings');
	//Hide "PAU → Suppliers".
	remove_submenu_page('pau', 'pau-proveedores');
	//Hide "PAU → Hot Spots UA".
	remove_submenu_page('pau', 'pau-hot-spots');
	//Hide "PAU → Help".
	remove_submenu_page('pau', 'pau-help');
	//Hide "PAU → Support".
	remove_submenu_page('pau', 'pau-support');
	//Hide "PAU → About us".
	remove_submenu_page('pau', 'pau-about-us');
}

add_action('admin_menu', 'plt_hide_pau_accesibilidad_universal_menus', 11);

Where do I put this code?