Fix deferred messaging tests

Author: EmandM

com.unity.netcode.gameobjects/Tests/Runtime/DeferredMessagingTests.cs

@@ -259,8 +259,7 @@ protected override void OnNewClientCreated(NetworkManager networkManager)
             {
                 AddPrefabsToClient(networkManager);
             }
-
-            base.OnNewClientCreated(networkManager);
+            // Don't call base to avoid synchronizing the prefabs
         }
 
         private void SpawnClients(bool clearTestDeferredMessageManagerCallFlags = true)

com.unity.netcode.gameobjects/Tests/Runtime/NetworkObject/NetworkObjectSynchronizationTests.cs

@@ -86,7 +86,6 @@ protected override void OnNewClientCreated(NetworkManager networkManager)
 
             networkManager.NetworkConfig.PlayerPrefab = m_PlayerPrefab;
             networkManager.NetworkConfig.EnsureNetworkVariableLengthSafety = m_VariableLengthSafety == VariableLengthSafety.EnabledNetVarSafety;
-
             // Disable forcing the same prefabs to avoid failed connections
             networkManager.NetworkConfig.ForceSamePrefabs = false;
             networkManager.LogLevel = m_CurrentLogLevel;