Remember, when you delete a group or subgroup, members of the
group lose the roles assigned to that group, and any parents of that group also lose those role assignments, unless the roles are also explicitly assigned to the parents.
Procedure
-
Click
Settings > User Groups.
-
Click the name of the group or subgroup that you want to
delete.
Note: To select a subgroup when the parent group's folder
icon is closed, click the plus sign (+) to expand the
list.
-
Click the Delete Group button at the top
of the right pane.
-
Click OK.