Deletes a CapaInstaller group.
DeleteGroup(Byval GroupName as String, Byval GroupType as String, Byval UnitType as String) as Boolean
The name of the group
The type of the group. Valid values are "Dynamic_ADSI", "Calendar", "Department", "Dynamic_SQL", "Reinstall", "Security" and "Static"
The type of the elements in the group. This can be either "Computer" or "User"
Boolean. Returns true if the group is deleted, otherwise false