Remove legacy credit card support

uncloud/uncloud_pay/serializers.py

@@ -34,12 +34,6 @@ class PaymentMethodSerializer(serializers.ModelSerializer):
 class ChargePaymentMethodSerializer(serializers.Serializer):
     amount = serializers.DecimalField(max_digits=10, decimal_places=2)
 
-class CreditCardSerializer(serializers.Serializer):
-    number = serializers.IntegerField()
-    exp_month = serializers.IntegerField()
-    exp_year = serializers.IntegerField()
-    cvc = serializers.IntegerField()
-
 class CreatePaymentMethodSerializer(serializers.ModelSerializer):
     please_visit = serializers.CharField(read_only=True)
     class Meta:

uncloud/uncloud_pay/stripe.py

@@ -71,19 +71,6 @@ def handle_stripe_error(f):
 
     return handle_problems
 
-# Convenience CC container, also used for serialization.
-class CreditCard():
-    number = None
-    exp_year = None
-    exp_month = None
-    cvc = None
-
-    def __init__(self, number, exp_month, exp_year, cvc):
-        self.number=number
-        self.exp_year = exp_year
-        self.exp_month = exp_month
-        self.cvc = cvc
-
 # Actual Stripe logic.
 
 def public_api_key():
@@ -116,12 +103,6 @@ def get_setup_intent(setup_intent_id):
 def get_payment_method(payment_method_id):
     return stripe.PaymentMethod.retrieve(payment_method_id)
 
-## Legacy
-
-@handle_stripe_error
-def get_card(customer_id, card_id):
-    return stripe.Customer.retrieve_source(customer_id, card_id)
-
 @handle_stripe_error
 def charge_customer(amount, customer_id, card_id):
     # Amount is in CHF but stripes requires smallest possible unit.