feat(tree-grid): hiding search for TreeGrid #2530

Author: DiyanDimitrov

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

@@ -289,6 +289,39 @@ export class IgxTreeGridComponent extends IgxGridBaseComponent {
         return false;
     }
 
+    /**
+     * @hidden
+     */
+    protected restoreHighlight(): void {
+    }
+
+    /**
+     * @hidden
+     */
+    public refreshSearch(updateActiveInfo?: boolean): number {
+        return 0;
+    }
+
+    /**
+     * @hidden
+     */
+    public findNext(text: string, caseSensitive?: boolean, exactMatch?: boolean): number {
+        return 0;
+    }
+
+    /**
+     * @hidden
+     */
+    public findPrev(text: string, caseSensitive?: boolean, exactMatch?: boolean): number {
+        return 0;
+    }
+
+    /**
+     * @hidden
+     */
+    public clearSearch() {
+    }
+
     /**
     * @hidden
     */