Update src/app/grid-row-pinning/grid-row-pinning.sample.ts

Author: hanastasov

src/app/grid-row-pinning/grid-row-pinning.sample.ts

@@ -45,7 +45,6 @@ export class GridRowPinningSampleComponent implements OnInit, AfterViewInit {
         groupBy: true,
         columns: false,
         rowPinning: true,
-        rowPinned: true,
         pinningConfig: true
     };
     public selectionMode;