How to Hide the "SF Autosuggest Products" Admin Menu

function plt_hide_sf_autosuggest_product_search_menus() {
	//Hide the "SF Autosuggest Products" menu.
	remove_menu_page('sf_pa-autosuggest-plugin');
}

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

Where do I put this code?