chore: remove no longer necessary global Vue

Author: yyx990803

packages/vue/__tests__/index.spec.ts

@@ -1,8 +1,5 @@
-import * as Vue from '../src'
 import { createApp } from '../src'
 
-;(window as any).Vue = Vue
-
 it('should support on-the-fly template compilation', () => {
   const container = document.createElement('div')
   const App = {