fix(tree): removed unnesesary else

Author: tishko0

projects/igniteui-angular/src/lib/tree/tree.component.ts

@@ -507,8 +507,6 @@ export class IgxTreeComponent implements IgxTree, OnInit, AfterViewInit, OnDestr
             requestAnimationFrame(() => {
                 this.selectionService.selectNodesWithNoEvent(toBeSelected);
             });
-        } else {
-            this.selectionService.selectNodesWithNoEvent(toBeSelected);
         }
 
         this.forceSelect = [];