Revert "Dont set payment to processing as it breaks payment from being processed correctly leaving it in a processing state."

This reverts commit b32711a0279889d9fcd73a9b6fd4fc75ca0ee882.

We need this hack, for now, to avoid spree doing two authorizations
process for the same payment (one is done when creating the profile and
the other is done when moving order to complete via
Order#process_payments!