clean it

Yavsc/ApiControllers/BlogApiController.cs

@@ -1,6 +1,5 @@
 using System.Collections.Generic;
 using System.Linq;
-using System.Threading.Tasks;
 using Microsoft.AspNet.Http;
 using Microsoft.AspNet.Mvc;
 using Microsoft.Data.Entity;

Yavsc/Migrations/20160802143258_bcontentornot.Designer.cs

@@ -1,7 +1,6 @@
 using System;
 using Microsoft.Data.Entity;
 using Microsoft.Data.Entity.Infrastructure;
-using Microsoft.Data.Entity.Metadata;
 using Microsoft.Data.Entity.Migrations;
 using Yavsc.Models;
 

Yavsc/Migrations/20160802145351_camelCaseBlog.Designer.cs

@@ -1,7 +1,6 @@
 using System;
 using Microsoft.Data.Entity;
 using Microsoft.Data.Entity.Infrastructure;
-using Microsoft.Data.Entity.Metadata;
 using Microsoft.Data.Entity.Migrations;
 using Yavsc.Models;
 

Yavsc/Migrations/ApplicationDbContextModelSnapshot.cs

@@ -1,8 +1,6 @@
 using System;
 using Microsoft.Data.Entity;
 using Microsoft.Data.Entity.Infrastructure;
-using Microsoft.Data.Entity.Metadata;
-using Microsoft.Data.Entity.Migrations;
 using Yavsc.Models;
 
 namespace Yavsc.Migrations