Refactor confusing 'more_opts' line in create_payment_method
Refactor confusing 'more_opts' line in create_payment_method

This code was complicated because I was trying to handle the case where someone posts to
create_payment_method without a 'credit_card' param. But that should be an error
anyway, so why handle it?

wacii/fake_braintree,1st8/fake_braintree,rochers/fake_braintree,foraker/fake_braintree,highfidelity/fake_braintree,twalpole/fake_braintree,twalpole/fake_braintree,wacii/fake_braintree,github/fake_braintree,highfidelity/fake_braintree,foraker/fake_braintree,rochers/fake_braintree