How to Hide the "Genium - GDPR Consent Popup" Admin Menu

function plt_hide_genium_gdpr_consent_popup_menus() {
	//Hide the "Settings → Genium - GDPR Consent Popup" menu.
	remove_submenu_page('options-general.php', 'ctcc');
}

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

Where do I put this code?