How to Hide EenvoudigFactureren for WooCommerce Admin Menus

function plt_hide_eenvoudigfactureren_for_woocommerce_menus() {
	//Hide "EenvoudigFactureren".
	remove_menu_page('wc-eenvoudigfactureren-settings-page');
	//Hide "EenvoudigFactureren → Connection".
	remove_submenu_page('wc-eenvoudigfactureren-settings-page', 'wc-eenvoudigfactureren-settings-page');
	//Hide "EenvoudigFactureren → General Settings".
	remove_submenu_page('wc-eenvoudigfactureren-settings-page', 'wc-eenvoudigfactureren-general-settings-page');
	//Hide "EenvoudigFactureren → Logbook".
	remove_submenu_page('wc-eenvoudigfactureren-settings-page', 'wc-eenvoudigfactureren-api-logs-page');
}

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

Where do I put this code?