removed auth and fixed id bug

Room/Room.cs

@@ -1,6 +1,4 @@
-using System.Collections;
-using System.Net.WebSockets;
-using System.Text;
+using System.Net.WebSockets;
 using System.Text.Json;
 using MauMau_Server.Mau;
 
@@ -62,13 +60,12 @@ public class Room
     private ConnectionInstance AddConnection(WebSocket socket)
     {
         var connectionId = Guid.NewGuid().ToString();
-        // TODO: Why does every connection have the same connectionId?
         var connection = new ConnectionInstance(connectionId, socket);
         _connections.Add(connection);
         return connection;
     }
 
-    public void RemoveConnection(string socketId)
+    private void RemoveConnection(string socketId)
     {
         _connections.RemoveAll(connection => connection.ConnectionId == socketId);
     }
@@ -102,12 +99,7 @@ public class Room
         return _connections.Select(connection => connection.Socket).ToList();
     }
 
-    private static byte[] EmptyBuffer()
-    {
-        return new byte[4096];
-    }
-
-    public bool IsEmpty()
+    private bool IsEmpty()
     {
         return _connections.Count == 0;
     }