[videoinfoscanner] remove unreachable code
[videoinfoscanner] remove unreachable code
[videoinfoscanner] remove unnecessary checks
[videoinfoscanner] simplify skip logic
[videoinfoscanner] simplify ScanTVFolder args
[videoinfoscanner] remove unused variables
[videoinfoscanner] simplify DoScan
[videoinfoscanner] remove OnDirectoryScanned. message is not used.