There is nothing to do at runtime: once installed, the cart is disabled site
wide.

To go back to the standard behaviour, simply uninstall the module. All the
template modifications are removed with it and the ``website_sale`` cart works
again as usual.

Note that this module only disables the **cart**. Checkout and payment routes
are left untouched; with an empty cart they redirect back to the cart route,
and therefore to the configured URL.