Remove commented out code and add entry to changelog

Author: EmandM

com.unity.netcode.gameobjects/CHANGELOG.md

@@ -14,6 +14,7 @@ Additional documentation and release notes are available at [Multiplayer Documen
 
 ### Fixed
 
+- Fixed issue with the Distributed Authority connection sequence with scene management enabled where the `ClientConnected` event was fired before the client was synchronized. (#3459)
 - Fixed issue where `NetworkVariable`s on a `NetworkBehaviour` could fail to synchronize changes if one has `NetworkVariableUpdateTraits` set and is dirty but is not ready to send. (#3466)
 - Fixed inconsistencies in the `OnSceneEvent` callback. (#3458)
 - Fixed issues with the `NetworkBehaviour` and `NetworkVariable` length safety checks. (#3405)

com.unity.netcode.gameobjects/Runtime/SceneManagement/NetworkSceneManager.cs

@@ -2533,29 +2533,13 @@ private void HandleSessionOwnerEvent(uint sceneEventId, ulong clientId)
                         {
                             // Remove the client that just synchronized
                             ClientConnectionQueue.Remove(clientId);
-                            // Debug.Log($"Remove client-{clientId} from synchronization queue.");
-                            //
-                            // // If we have pending clients to synchronize, then make sure they are still connected
-                            // while (ClientConnectionQueue.Count > 0)
-                            // {
-                            //     // If the next client is no longer connected then remove it from the list
-                            //     if (!NetworkManager.ConnectedClientsIds.Contains(ClientConnectionQueue[0]))
-                            //     {
-                            //         Debug.Log($"Remove client-{clientId} from synchronization queue as they are no longer connected.");
-                            //         ClientConnectionQueue.RemoveAt(0);
-                            //     }
-                            //     else
-                            //     {
-                            //         break;
-                            //     }
-                            // }
 
                             // If we still have any pending clients waiting, then synchronize the next one
                             if (ClientConnectionQueue.Count > 0)
                             {
                                 if (NetworkManager.LogLevel <= LogLevel.Developer)
                                 {
-                                    Debug.Log($"Synchronizing Deferred Client-{ClientConnectionQueue[0]}...");
+                                    Debug.Log($"Synchronizing deferred Client-{ClientConnectionQueue[0]}...");
                                 }
                                 SynchronizeNetworkObjects(ClientConnectionQueue[0]);
                             }