How to Hide Portfolio Gallery Admin Menus

function plt_hide_portfolio_gallery_menus() {
	//Hide "Huge-IT Portfolio".
	remove_menu_page('portfolios_huge_it_portfolio');
	//Hide "Huge-IT Portfolio → Portfolios".
	remove_submenu_page('portfolios_huge_it_portfolio', 'portfolios_huge_it_portfolio');
	//Hide "Huge-IT Portfolio → General Options".
	remove_submenu_page('portfolios_huge_it_portfolio', 'Options_portfolio_styles');
	//Hide "Huge-IT Portfolio → Lightbox Options".
	remove_submenu_page('portfolios_huge_it_portfolio', 'Options_portfolio_lightbox_styles');
	//Hide "Huge-IT Portfolio → Featured Plugins".
	remove_submenu_page('portfolios_huge_it_portfolio', 'huge_it__portfolio_featured_plugins');
	//Hide "Huge-IT Portfolio → Licensing".
	remove_submenu_page('portfolios_huge_it_portfolio', 'huge_it__portfolio_licensing');
}

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

Where do I put this code?