How to Hide Acunetix Secure WordPress Admin Menus

function plt_hide_secure_wordpress_menus() {
	//Hide "Secure WP".
	remove_menu_page('swpa_');
	//Hide "Secure WP → Dashboard".
	remove_submenu_page('swpa_', 'swpa_');
	//Hide "Secure WP → Database".
	remove_submenu_page('swpa_', 'swpa_database');
	//Hide "Secure WP → Scanner".
	remove_submenu_page('swpa_', 'swpa_scanner');
	//Hide "Secure WP → Live traffic".
	remove_submenu_page('swpa_', 'swpa_live_traffic');
	//Hide "Secure WP → Blog".
	remove_submenu_page('swpa_', 'swpa_blog');
	//Hide "Secure WP → Settings".
	remove_submenu_page('swpa_', 'swpa_settings');
	//Hide "Secure WP → About".
	remove_submenu_page('swpa_', 'swpa_about');
}

add_action('admin_menu', 'plt_hide_secure_wordpress_menus', 11);
Where do I put this code?