The following CSS styling allows you to hide the calculate shipping/taxes address entry on the cart. Shipping and/or taxes will still be calculated on the checkout - but this can be useful if you want to remove some of the requirements for customers on the cart.
Note: If you are accepting payments by PayPal Express Checkout, the Sidecart currently requires that the customer complete their shipping address on the cart before it will allow them to proceed to PayPal from the cart. As such, we would recommend leaving the address entry in place if you're using that payment method from the cart.