How to Hide Stop Web Crawlers Admin Menus

function plt_hide_stop_web_crawlers_menus() {
	//Hide "Stop Web Crawlers".
	remove_menu_page('swc_main_menu');
	//Hide "Stop Web Crawlers → Dashboard".
	remove_submenu_page('swc_main_menu', 'swc_main_menu');
	//Hide "Stop Web Crawlers → List".
	remove_submenu_page('swc_main_menu', 'web-crawlers-list');
	//Hide "Stop Web Crawlers → Add New".
	remove_submenu_page('swc_main_menu', 'add-web-crawler');
}

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

Where do I put this code?