As the note says, whatever these are they no longer work with Yosemite. If it's something you need then find an update. They won't hurt anything where they are but if you want to save space you will probably want to uninstall whatever it is. Those two items are located in /Library/...
This web page contains thorough information on how to uninstall Surfshark for Windows.It was developed for Windows bySurfshark.Openherewhere you can read more on Surfshark.The program is usually found in the C:\Program Files (x86)\Surfshark directory (same installation drive as Windows).Surfshark'...