Revert "Fixed #15903 - Table | Multiple Selection with dataKey shows …

…wrong selected row count upon CTRL+A"

src/app/components/table/table.ts

@@ -1877,7 +1877,9 @@ export class Table implements OnInit, AfterViewInit, AfterContentInit, Blockable
                 }
 
                 rangeRowsData.push(rangeRowData);
-
+                setTimeout(() => {
+                    this._selection = [...this.selection, rangeRowData];
+                });
                 let dataKeyValue = this.dataKey ? String(ObjectUtils.resolveFieldData(rangeRowData, this.dataKey)) : null;
                 if (dataKeyValue) {
                     this.selectionKeys[dataKeyValue] = 1;