How to Hide Huge IT Google Map Admin Menus

function plt_hide_google_maps_menus() {
	//Hide "Google Maps".
	remove_menu_page('hugeit_maps');
	//Hide "Google Maps → Google Maps".
	remove_submenu_page('hugeit_maps', 'hugeit_maps');
	//Hide "Google Maps → Featured plugins".
	remove_submenu_page('hugeit_maps', 'hugeit_maps_featured_plugins');
	//Hide "Google Maps → Licensing".
	remove_submenu_page('hugeit_maps', 'hugeit_maps_licensing');
}

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

Where do I put this code?