There are 2 ways to achieve this:
1. Delete the checkout pages
Login to your Swifty platform site, go to > Website > Edit Website, select Shopping Cart in the Website Map block, right click to open the context menu and select Delete Page or just click on the Delete Page button .
The page can be re-added later. To do this please select the Home page and click on the Add Page button (or select this option from the context menu). In the Add Page dialog window select 'Shopping Cart and Checkout Pages', name the page and click Done.
2. Change a product display settings
Go to Catalogue > Manage Products . Click on the Edit Product button for required product and untick the 'Product can be ordered Online' check box.
3. Click Done.