You have created qualifications and you want to delete them.
To delete qualifications for a task, you have to be in the task definition (Projects initial view → Structure tab page → Task Definition → Qualifications).
To delete qualifications for a project role, you have to be in the Projects initial view, then go to the Resources tab page and the Qualifications tab.
1. Select the qualification(s) to be deleted in the Qualification Requirements group box.
2. Choose Delete Selected Objects.
3. Save your data.