Garmin App Performance Stats Cross Country Skiing power

How do I delete Cross Country Skiing power FTP from my performance stats on the garmin connect app? I have never went skiing and I have searched through my activities to see if I mislabelled a workout but I can't seem to find one. 

Does it affect my cycling FTP as it is this number reading low lately could Cross Country Skiing power affect it?

Any help to find a solution would be great

Thanks 

Chris