launch daemon

after updating to El Capitan I found file:///System/Library/LaunchDaemons/com.apple.airplaydiagnostics.server.mac.pl ist, which contained the string "/AppleInternal/Applications/AirPlayDiagnostics.app/Contents/...". This dir doesn't exist.

Can I delete the .plist-file from the LaunchDaemons-directory without doing any harm to the system?