[Modify] Remove it

websocket-sharp/Server/WebSocketServiceManager.cs

@@ -283,25 +283,6 @@ namespace WebSocketSharp.Server
       return _state == ServerState.Ready || _state == ServerState.Stop;
     }
 
-    private bool canSet (out string message)
-    {
-      message = null;
-
-      if (_state == ServerState.Start) {
-        message = "The server has already started.";
-
-        return false;
-      }
-
-      if (_state == ServerState.ShuttingDown) {
-        message = "The server is shutting down.";
-
-        return false;
-      }
-
-      return true;
-    }
-
     #endregion
 
     #region Internal Methods