2.2.2 May not be auto-deleting old perfstats logs

[TrevorJD]

Hi guys, our dedi server ran out of disk space tonight. I discovered no less than 1420 server-perfstats files in the Avorion folder. I have had profiling=true and performanceDataAutoSaveFiles=10 for at least three weeks but all had dates in the last 3 days. You might want to check that 2.2.2 is correctly deleting old perfstats files.