Answer: In just a few taps!
Don't forget! deleting a class will delete ALL assignments associated with that class.
If you're sure then simply:
- Open Handouts and log in as a teacher.
- Tap on 'Edit' (blue button) in the top right of the class you want to delete.
- Tap on 'Delete this class' (red text at the bottom of the dialogue box).
- Tap on 'Delete' when prompted.
And the class in question will magically disappear from your Handouts!