If you want to delete an evaluation cycle you have to:
1. On the left menu, go to Performance > Evaluation Cycles
2. Click on the three dots button (⋮) of the cycle you want to delete
3. Select Delete evaluation cycle
When you delete the assessment cycle, all the answers associated with the cycle are also deleted.
4. Finally, click on Yes, delete cycle
5. That's it! You have successfully deleted an evaluation cycle.