How to Hide iControlWP Admin Menus

function plt_hide_worpit_admin_dashboard_plugin_menus() {
	//Hide the "iControlWP" menu.
	remove_menu_page('icwp-app');
	//Hide the "iControlWP → Dashboard" menu.
	remove_submenu_page('icwp-app', 'icwp-app-plugin');
}

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

Where do I put this code?