ALV unwanted data from old layout variant

All,

We are using 6.0 and have a customized report that uses ALV. I have a layout variant I use that contains the field PRICE. We want to exclude PRICE from this report and the developers have made the code changes. However, when I execute the report with the old variant the PRICE field appears (in the header and the data). When I use a variant created after the code change the PRICE field does not appear.

What needs to be done to eliminate the PRICE from ever showing up when I use the old layout variant?

Thanks

Sandra