chore: small fix

src/app-layout/visual-refresh-toolbar/index.tsx

@@ -1,6 +1,6 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 // SPDX-License-Identifier: Apache-2.0
-import React, { useEffect, useImperativeHandle, useRef, useState } from 'react';
+import React, { useEffect, useImperativeHandle, useState } from 'react';
 
 import { useStableCallback } from '@cloudscape-design/component-toolkit/internal';
 
@@ -9,7 +9,6 @@ import { SplitPanelSideToggleProps } from '../../internal/context/split-panel-co
 import { fireNonCancelableEvent } from '../../internal/events';
 import { useControllable } from '../../internal/hooks/use-controllable';
 import { useIntersectionObserver } from '../../internal/hooks/use-intersection-observer';
-import { useMergeRefs } from '../../internal/hooks/use-merge-refs';
 import { useMobile } from '../../internal/hooks/use-mobile';
 import { useUniqueId } from '../../internal/hooks/use-unique-id';
 import { useGetGlobalBreadcrumbs } from '../../internal/plugins/helpers/use-global-breadcrumbs';
@@ -78,7 +77,6 @@ const AppLayoutVisualRefreshToolbar = React.forwardRef<AppLayoutProps.Ref, AppLa
     const [toolbarHeight, setToolbarHeight] = useState(0);
     const [notificationsHeight, setNotificationsHeight] = useState(0);
     const [navigationAnimationEnabled, setNavigationAnimationEnabled] = useState(false);
-    const rootRef = useRef<HTMLDivElement>(null);
 
     const [toolsOpen = false, setToolsOpen] = useControllable(controlledToolsOpen, onToolsChange, false, {
       componentName: 'AppLayout',
@@ -434,7 +432,7 @@ const AppLayoutVisualRefreshToolbar = React.forwardRef<AppLayoutProps.Ref, AppLa
         {/* Rendering a hidden copy of breadcrumbs to trigger their deduplication */}
         {!hasToolbar && breadcrumbs ? <ScreenreaderOnly>{breadcrumbs}</ScreenreaderOnly> : null}
         <SkeletonLayout
-          ref={useMergeRefs(intersectionObserverRef, rootRef)}
+          ref={intersectionObserverRef}
           style={{
             [globalVars.stickyVerticalTopOffset]: `${verticalOffsets.header}px`,
             [globalVars.stickyVerticalBottomOffset]: `${placement.insetBlockEnd}px`,