Cleanup the ReservedPackets

MistoxServer/Client/Entities/UDPEndpoint.cs

@@ -1,5 +1,3 @@
-using System.Net;
-
 namespace Mistox.Client {
     public class UDPEndpoint {
         public string UserName { get; set; } = "";                          // The Players UserName

MistoxServer/Client/Entities/UserConnectionPacket.cs

@@ -1,8 +0,0 @@
-using Mistox.Attributes;
-
-[mPacket(0xFF)]
-public class UserConnectionPacket {
-    string UserName { get; set; }
-    long RemoteIP { get; set; }
-    int Port { get; set; }
-}