Hi Pankaj,
Not possible. There is no alternative solution until & unless delete the cost element transaction data with using of mentioned document and note
Deletion of primary cost element to which transaction data is posted
Make sure with business user's before deleting data of cost element.
After deleting the same ,you can change message as warning in OBA5 transaction code and change P&L GL account as BS. Balance carryforward must be run
Regards
Mani Kumar