Quickly delete all products and orders from uCommerce
Note: An updated version of this code for the new Ucommerce schema is available here: https://thesitedoctor.co.uk/blog/delete-all-products-and-orders-from-ucommerce/
Sometimes you need to blitz your uCommerce database e.g. just before launch or to remove the testing products etc.
This is a quick database clear script which will