How to Hide SiteSEO - SEO Simplified Admin Menus

function plt_hide_siteseo_menus() {
	//Hide "SiteSEO".
	remove_menu_page('siteseo');
	//Hide "SiteSEO → Dashboard".
	remove_submenu_page('siteseo', 'siteseo');
	//Hide "SiteSEO → Titles & Metas".
	remove_submenu_page('siteseo', 'siteseo-titles');
	//Hide "SiteSEO → Sitemaps".
	remove_submenu_page('siteseo', 'siteseo-sitemaps');
	//Hide "SiteSEO → Social Networks".
	remove_submenu_page('siteseo', 'siteseo-social');
	//Hide "SiteSEO → Analytics".
	remove_submenu_page('siteseo', 'siteseo-analytics');
	//Hide "SiteSEO → Instant Indexing".
	remove_submenu_page('siteseo', 'siteseo-instant-indexing');
	//Hide "SiteSEO → Advanced".
	remove_submenu_page('siteseo', 'siteseo-advanced');
	//Hide "SiteSEO → Tools".
	remove_submenu_page('siteseo', 'siteseo-tools');
}

add_action('admin_menu', 'plt_hide_siteseo_menus', 1000);

Where do I put this code?