WARNING!: Deleting a class will delete all data associated with that class and cannot be undone.
Video Tutorial
Step-by-Step Directions
Select the Manage item in the Navigation Bar in the upper right corner of the screen.
From the Mange menu select Classes.
You should now be on the Manage Classes screen.
Find the class you want to delete and select the Actions dropdown on the right side of that row.
Select the Delete menu item.
To continue with the deleting of the class you will have to enter "Delete" into the field to enable the Delete button.
After entering the word "Delete" into the entry field, the Delete button will be enabled. Selecting it will delete your class.
You will get a confirmation message at the top of the Manage Classes screen that your class has been deleted.