docs(start/tutorial.md): remove unused import (#9712)

Author: WalkAlone0325

contributors.yml

@@ -154,3 +154,4 @@
 - xavier-lc
 - xcsnowcity
 - yuleicul
+- WalkAlone0325

docs/start/tutorial.md

@@ -67,13 +67,12 @@ The `main.jsx` file is the entry point. Open it up and we'll put React Router on
 
 👉 **Create and render a [browser router][createbrowserrouter] in `main.jsx`**
 
-```jsx lines=[3-7,10-15,19] filename=src/main.jsx
+```jsx lines=[3-6,9-14,18] filename=src/main.jsx
 import React from "react";
 import ReactDOM from "react-dom/client";
 import {
   createBrowserRouter,
   RouterProvider,
-  Route,
 } from "react-router-dom";
 import "./index.css";