Remove useles attribute (#796)

### Description

Please explain the changes you made here.

### Checklist

- [ ] Created tests which fail without the change (if possible)
- [ ] All tests passing
- [ ] Extended the documentation, if necessary

Author: Rotheem

app/modules/cdr/schemas_cdr.py

@@ -244,7 +244,6 @@ class SignatureComplete(SignatureBase):
 class PaymentBase(BaseModel):
     total: int
     payment_type: PaymentType
-    year: int
 
 
 class PaymentComplete(PaymentBase):