If no Leave was taken from PL Leave, then you should be able to delete the Quota easily.
If the employee has taken Leave from the PL Leave, you have 2 solutions:
- Delete the Absences for PL Leave and create other Absences on the same dates;
- Make a Quota Adjustment to eliminate the Quota Balance left and create a Note on the PL Leave Quota to explain that the employee should not have had PL Leave but mistake was made and the "past" was left untouched.