Chapter 297 of the Acts of Assembly of 1944, approved March 29, 1944, requiring permits to sell or purchase pistols or revolvers in any county having a density of population of more than 1,000 a square mile, is repealed. Any records or copies thereof that were created pursuant to this section that are in the custody of any county shall be destroyed no later than July 31, 2004. Upon destroying the records, the county shall certify to the circuit court that such destruction has been completed.