Update instance.md

Author: iHelin

src/guide/instance.md

@@ -93,8 +93,6 @@ var vm = new Vue({
 // -> "a is: 1"
 ```
 
-There are also other hooks which will be called at different stages of the instance's lifecycle, for example `mounted`, `updated`, and `destroyed`. All lifecycle hooks are called with their `this` context pointing to the Vue instance invoking it. You may have been wondering where the concept of "controllers" lives in the Vue world and the answer is: there are no controllers. Your custom logic for a component would be split among these lifecycle hooks.
-
 也有一些其它的钩子，在实例生命周期的不同阶段调用，如 `mounted`、 `updated` 、`destroyed` 。钩子的 `this` 指向调用它的 Vue 实例。一些用户可能会问 Vue.js 是否有“控制器”的概念？答案是，没有。组件的自定义逻辑可以分布在这些钩子中。