bugfix(react-tree-item): regression fix for focus and blur events on TreeItem (#30436)

Author: bsunderhus

change/@fluentui-react-tree-2d77df3e-24cf-4465-ab45-585ec20e0e7b.json

@@ -0,0 +1,7 @@
+{
+  "type": "patch",
+  "comment": "bugfix: regression fix for focus and blur events on TreeItem",
+  "packageName": "@fluentui/react-tree",
+  "email": "[email protected]",
+  "dependentChangeType": "patch"
+}

packages/react-components/react-tree/src/components/TreeItem/useTreeItem.tsx

@@ -40,10 +40,6 @@ export function useTreeItem_unstable(props: TreeItemProps, ref: React.Ref<HTMLDi
   const {
     onClick,
     onKeyDown,
-    onMouseOver,
-    onFocus,
-    onMouseOut,
-    onBlur,
     onChange,
     as = 'div',
     itemType = 'leaf',