Destroys a subset from a hierarchy.
HierarchySubsetDestroy destroys a subset from a hierarchy.
HierarchySubsetDestroy(DimensionName, HierarchyName, SubsetName);
DimensionName = Name of the dimension the subset is in.
HierarchyName = Name of the Hierarchy the subset is in.
SubsetName = Name of the subset to be deleted.
Use HierarchySubsetDestroy remove the Departments subset associated with the Employee hierarchy and Employee dimension.