How to Hide the "Bandeau Cookie : RGPD/GPDR Cookie Consent" Admin Menu

function plt_hide_bandeau_cookie_menus() {
	//Hide the "Settings → Bandeau Cookie : RGPD/GPDR Cookie Consent" menu.
	remove_submenu_page('options-general.php', 'bandeau-cookie');
}

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

Where do I put this code?