How to Hide ByteDefense Admin Menus

function plt_hide_bytedefense_menus() {
	//Hide "ByteDefense".
	remove_menu_page('bytedefense');
	//Hide "ByteDefense → Scan  Report".
	remove_submenu_page('bytedefense', 'bytedefense');
	//Hide "ByteDefense → Database Scan".
	remove_submenu_page('bytedefense', 'bytedefense-database-scan');
	//Hide "ByteDefense → GEO Protection".
	remove_submenu_page('bytedefense', 'bytedefense-geo-protection');
	//Hide "ByteDefense → Support".
	remove_submenu_page('bytedefense', 'bytedefense-support');
}

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

Where do I put this code?