perf: Fixed UnnamedMessage send scaling from O(n) to O(1) for n clients

Author: TwoTenPvP

MLAPI/Messaging/CustomMessageManager.cs

@@ -55,20 +55,7 @@ public static void SendUnnamedMessage(List<ulong> clientIds, BitStream stream, s
                 return;
             }
 
-            if (clientIds == null)
-            {
-                for (int i = 0; i < NetworkingManager.Singleton.ConnectedClientsList.Count; i++)
-                {
-                    InternalMessageSender.Send(NetworkingManager.Singleton.ConnectedClientsList[i].ClientId, MLAPIConstants.MLAPI_UNNAMED_MESSAGE, string.IsNullOrEmpty(channel) ? "MLAPI_DEFAULT_MESSAGE" : channel, stream, security, null);
-                }
-            }
-            else
-            {
-                for (int i = 0; i < clientIds.Count; i++)
-                {
-                    InternalMessageSender.Send(clientIds[i], MLAPIConstants.MLAPI_UNNAMED_MESSAGE, string.IsNullOrEmpty(channel) ? "MLAPI_DEFAULT_MESSAGE" : channel, stream, security, null);
-                }
-            }
+            InternalMessageSender.Send(MLAPIConstants.MLAPI_UNNAMED_MESSAGE, string.IsNullOrEmpty(channel) ? "MLAPI_DEFAULT_MESSAGE" : channel, clientIds, stream, security, null);
         }
 
         /// <summary>