Remove redundant code from Benefit class methods (#3624)
Remove redundant code from Benefit class methods (#3624)


solarissmoke/django-oscar,django-oscar/django-oscar,django-oscar/django-oscar,solarissmoke/django-oscar,solarissmoke/django-oscar,solarissmoke/django-oscar,django-oscar/django-oscar,django-oscar/django-oscar