Hide Free Shipping in the Chekout

Hello,
Buying a “TOUR”, in “Your Order”, how can I delete the line “shipping”+ “free shipping” ? So to not appearing also in “Order Details”?
Exsample my site:
http://shop.turismoarancione.it/assistenza/my_site.jpg

Your Demo Site:
http://shop.turismoarancione.it/assistenza/demo_site.jpg

Best regards