Cleanup unused directives

ProjectLighthouse/Controllers/LevelQueueController.cs

@@ -1,5 +1,4 @@
 #nullable enable
-using System.Collections;
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;

ProjectLighthouse/Controllers/LoginController.cs

@@ -1,9 +1,7 @@
 #nullable enable
-using System;
 using System.IO;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Mvc;
-using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Primitives;
 using ProjectLighthouse.Types;
 

ProjectLighthouse/Controllers/MessageController.cs

@@ -1,6 +1,5 @@
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Mvc;
-using Microsoft.EntityFrameworkCore;
 using ProjectLighthouse.Types;
 
 namespace ProjectLighthouse.Controllers {

ProjectLighthouse/Controllers/SlotsController.cs

@@ -1,8 +1,6 @@
 using System.Collections.Generic;
 using System.Linq;
-using System.Threading.Tasks;
 using Microsoft.AspNetCore.Mvc;
-using Microsoft.EntityFrameworkCore;
 using ProjectLighthouse.Serialization;
 using ProjectLighthouse.Types;
 

ProjectLighthouse/Database.cs

@@ -1,5 +1,5 @@
 //#nullable enable
-using System;
+
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Http;
 using Microsoft.EntityFrameworkCore;

ProjectLighthouse/Helpers/BinaryHelper.cs

@@ -1,4 +1,3 @@
-using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Text;

ProjectLighthouse/Types/QueuedLevel.cs

@@ -1,6 +1,5 @@
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
-using System.Linq;
 
 namespace ProjectLighthouse.Types {
     public class QueuedLevel {