update

Removing commented out code.
NetworkTransform using the realtime provider time system to be more compatible with the integration test time travel system.

Author: NoelStephensUnity

com.unity.netcode.gameobjects/Runtime/Components/Interpolator/BufferedLinearInterpolator.cs

@@ -439,9 +439,6 @@ internal T Update(float deltaTime, double tickLatencyAsTime, double minDeltaTime
                     // SmoothDampen or LerpExtrapolateBlend
                     if (!isLerpAndExtrapolate)
                     {
-                        //InterpolateState.PreviousValue = SmoothDamp(InterpolateState.PreviousValue, InterpolateState.Target.Value.Item, ref m_RateOfChange, (float)InterpolateState.TimeToTargetValue, (float)InterpolateState.DeltaTime);
-                        //var predictedTime = InterpolateState.PredictingNext ? InterpolateState.DeltaTime : Math.Min(InterpolateState.TimeToTargetValue, InterpolateState.DeltaTime + InterpolateState.AverageDeltaTime);
-                        //InterpolateState.PredictValue = SmoothDamp(InterpolateState.PredictValue, InterpolateState.PredictTarget, ref m_PredictedRateOfChange, (float)InterpolateState.TimeToTargetValue, (float)predictedTime);
                         InterpolateState.PreviousValue = SmoothDamp(InterpolateState.PreviousValue, InterpolateState.Target.Value.Item, ref m_RateOfChange, (float)InterpolateState.TimeToTargetValue, (float)InterpolateState.DeltaTime);
                         var predictedTime = InterpolateState.PredictingNext ? InterpolateState.DeltaTime : Math.Min(InterpolateState.TimeToTargetValue, InterpolateState.DeltaTime + InterpolateState.AverageDeltaTime);
                         InterpolateState.PredictValue = SmoothDamp(InterpolateState.PredictValue, InterpolateState.Target.Value.Item, ref m_PredictedRateOfChange, (float)InterpolateState.TimeToTargetValue, (float)predictedTime);

com.unity.netcode.gameobjects/Runtime/Components/NetworkTransform.cs

@@ -3925,7 +3925,7 @@ private void UpdateInterpolation()
             var timeSystem = m_CachedNetworkManager.ServerTime;
             var currentTime = timeSystem.Time;
 #if COM_UNITY_MODULES_PHYSICS || COM_UNITY_MODULES_PHYSICS2D
-            var cachedDeltaTime = m_UseRigidbodyForMotion ? Time.fixedDeltaTime : Time.deltaTime;
+            var cachedDeltaTime = m_UseRigidbodyForMotion ? m_CachedNetworkManager.RealTimeProvider.FixedDeltaTime : m_CachedNetworkManager.RealTimeProvider.DeltaTime;
 #else
             var cachedDeltaTime = Time.deltaTime;
 #endif