Delete a Security Group
Add a Custom Security Group | Employees & Security Overview
You can only delete your custom security groups.
From the Employees menu, select Security.
From the I Want To menu, select Delete Group.
In the Delete Security roup dialog, select the group you wish to delete from the drop-down list. In the second drop-down, specify the group to which the employees from the deleted group should be assigned.
Click Delete.
If prompted, select Yes to confirm the deletion.