Code cleanup

Controllers/Managers/TokenManager.cs

@@ -1,12 +1,7 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
 using System.Security.Claims;
-using System.Threading.Tasks;
 using System.IdentityModel.Tokens.Jwt;
 using System.Text;
 
-using Microsoft.Extensions.Configuration;
 using Microsoft.IdentityModel.Tokens;
 using Newtonsoft.Json;
 using RestSharp;