Go to Personal tab,
Check the box of the profile you want to delete,
Then click on the Options icons,
And click on Delete Personnel
5. This pop up appears:
6. Click on delete and you're done.
Note: You won't see the calendar or the profile of this staff, however you'll see the name in the appointment history, for appointments he/she offered. If you would like to keep this users appointments visible but block their access, block rather than delete the user.
Click here to see how to block a staff.