重构代码：移除不使用的命名空间

Bootstrap.Admin/Controllers/Api/LoginController.cs

@@ -4,7 +4,6 @@ using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using Newtonsoft.Json.Linq;
 using System.Collections.Generic;
-using System.Linq;
 
 namespace Bootstrap.Admin.Controllers.Api
 {
@@ -45,6 +44,7 @@ namespace Bootstrap.Admin.Controllers.Api
             }
             return token;
         }
+
         /// <summary>
         /// 
         /// </summary>

Bootstrap.Admin/Controllers/Api/RegisterController.cs

@@ -1,12 +1,9 @@
 using Bootstrap.DataAccess;
-using Longbow.Web;
 using Longbow.Web.SignalR;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.SignalR;
-using System;
 using System.Linq;
-using System.Net;
 using System.Threading.Tasks;
 
 namespace Bootstrap.Admin.Controllers.Api

Bootstrap.DataAccess/Exceptions.cs

@@ -1,6 +1,4 @@
-using Longbow;
-using Longbow.Configuration;
-using Longbow.Web.Mvc;
+using Longbow.Web.Mvc;
 using PetaPoco;
 using System;
 using System.Collections.Generic;