Update IFileService.cs

Tsi1.Api/Tsi1.BusinessLayer/Interfaces/IFileService.cs

-using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Http;
 using System;
 using System.Collections.Generic;
 using System.Text;
@@ -10,8 +10,6 @@ namespace Tsi1.BusinessLayer.Interfaces
 {
     public interface IFileService
     {
-        //Task<ServiceResult<FileDto>> SaveFile(IFormFile file);
-
         Task<ServiceResult<FileDto>> Create(IFormFile file, int tenantId, int courseId);
     }
 }