How to hide discounted Price per Unit?

Hi!
When ordering >50 of our brochures, the discounted price per unit appears in the cart (“Warenkorb”) and in the cart-widget as well. Is it possible to hide this price or the price per unit in the cart anyway?
http://ifz.de/wordpress/produktkategorie/broschueren/

https://wordpress.org/plugins/woocommerce/