Merge pull request astaxie#191 from liusongsen/patch-2

Update 13.5.md

Author: astaxie

ebook/13.5.md

@@ -126,7 +126,6 @@ DeleteController
 	}
 
 	func (this *DeleteController) Get() {
-		inputs := this.Input()
 		id, _ := strconv.Atoi(this.Ctx.Params[":id"])
 		this.Data["Post"] = models.DelBlog(id)
 		this.Ctx.Redirect(302, "/")
@@ -256,4 +255,4 @@ edit.tpl
 ## links
    * [目录](<preface.md>)
    * 上一章: [数据库操作](<13.4.md>)
-   * 下一节: [小结](<13.6.md>)
+   * 下一节: [小结](<13.6.md>)