2.2.2 Delete a project property scheme
1 If you want to delete a project attribute, find the "Delete" button in the current project attribute scheme column, click "Delete", a confirmation prompt box will pop up
2 If the current scheme is not associated with any project or project attribute, click "Confirm" and the deletion is successful. If it is already associated with the project or project attribute, click "Confirm", and it will prompt "There is a project or project property associated with the scheme and cannot be deleted."