If the admins want to delete the custom attendance shift, they need to do it in 'Setting'. The default shift in policy can't be deleted.

Here is the tutorial video for you.

1). Go to 'Setting' and click on 'Policies'.

2). Click the policy name you want to delete the attendance shift and click on 'Attendance'.

3). Scroll down and click on 'Delete icon' beside the attendance policy name you want to delete and click on confirm.

4). Click on 'Update policy' and 'Confirm'.