The line is called the "Charlotte Runner" for obvious reasons.
Back in the day there were several customers in Charlotte that received service but they are gone and/or the tracks and switches have been removed. Primary customer was the power plant which has been decommissioned. The line also handled some Kodak Park traffic (along with the R&S) which has disappeared with the Kodak downsizing.
Interesting enough, while the line is not in use now, it has not been declared officially OOS as far as I know.
Poppyl