Correzioni warnings in TaskMan

MP.TaskMan/Controllers/MpTaskController.cs

@@ -2,16 +2,11 @@
 using Microsoft.Extensions.Configuration;
 using MP.TaskMan.Models;
 using NLog;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using static MP.TaskMan.Objects.Enums;
 
 namespace MP.TaskMan.Controllers
 {
-    public class MpTaskController : IDisposable
+    public class MpTaskController 
     {
         #region Public Constructors
 
@@ -87,11 +82,7 @@ namespace MP.TaskMan.Controllers
             return dtNext;
         }
 
-        public void Dispose()
-        {
-            _configuration = null;
-        }
-
+      
         /// <summary>
         /// Chiamata esecuzione di un singolo task programmato, SE in stato abilitato
         /// </summary>