3b751a35c Removed our old coupon functionality, and slightly reworked
the invoice List() function in the stripecoinpayments package.
It turns out, this is causing some issues when trying to delete users.
This change keeps the new functionality, which is used in the satellite
UI, but under a new name, ListWithDiscounts()
Change-Id: I6a62a1de480e09d005dd22d75aa1e024fd2ed3a0
Removes database tables and functionality related to our custom
coupon implementation because it has been superseded by the Stripe
coupon and promo code system. Requires implementations of the
payments Invoices interface to return coupon usages along with
invoices.
Change-Id: Iac52d2ff64afca8cc4dbb2d1f20e6ad4b39ddfde
