Deleteing a group schedule

Hi Guys

I have a scheduled group of 60 servers to be scanned and then reboot at a latter time.

But I need to delete / cancel this schedule.

I did find the articles below but this is for one server at a time and this would take for ever, there must be a better way.

If I simply right hand mouse and select delete nothing happens.

How To Cancel / Delete Scheduled Tasks

How to remove machines from Scheduled Tasks Manager machine list

Thanks

Steve