* remove needless section

src/v2/guide/components.md

@@ -1106,7 +1106,6 @@ template: '<div><stack-overflow></stack-overflow></div>'
 </ul>
 ```
 
-When you look closely, you'll see that these components will actually be each other's descendent _and_ ancestor in the render tree - a paradox! When registering components globally with `Vue.component`, this paradox is resolved for you automatically. If that's you, you can stop reading here.
 当你仔细看时，会发现在渲染树上这两个组件同时为对方的父节点和子节点--这点是矛盾的。当使用`Vue.component`将这两个组件注册为全局组件的时候，框架会自动为你解决这个矛盾，如果你是这样做的，就不用继续往下看了。
 然而，如果你使用诸如Webpack或者Browserify之类的模块化管理工具来requiring/importing组件的话，就会报错了：
 ```