Shopify/active_merchant — pull request #1419 by duff (2014-10-13 16:40:02+00:00)
Title: Stripe: Make #unstore signature consistent

There are more than 15 gateways now that have an #unstore method and
almost all of them have 2 parameters. This commit makes the Stripe
unstore method consistent so the gateways can be used interchangeably.