message: docs(data-table): misc Angular story fix
  This change fixes Angular story for data table, of a stale comment as
  well as of an used property.
diff: @@ -228,12 +228,7 @@ class BXCEDemoDataTable {
  _rows?: TDemoTableRow[];
  /**
  - * The sorted version of the table rows.
  - */
  - _sortedRows?: TDemoTableRow[];
  -
  - /**
  - * `true` if all rows are selected;
  + * `true` if all rows are selected.
  */
  _selectedAll?: boolean;
  