Revert "sadasd"

This reverts commit 9f85ce4f52.

backend/igny8_core/auth/serializers.py

@@ -287,7 +287,7 @@ class RegisterSerializer(serializers.Serializer):
     def create(self, validated_data):
         from django.db import transaction
         from igny8_core.business.billing.models import CreditTransaction
-        from igny8_core.auth.models import Subscription
+        from igny8_core.business.billing.models import Subscription
         from igny8_core.business.billing.models import AccountPaymentMethod
         from igny8_core.business.billing.services.invoice_service import InvoiceService
         from django.utils import timezone