style

Removing using directive for UnityEngine as it is an unused namespace.

Author: NoelStephensUnity

com.unity.netcode.gameobjects/Tests/Runtime/NetworkTransform/NetworkTransformTickLatencyTests.cs

@@ -2,7 +2,6 @@
 using NUnit.Framework;
 using Unity.Netcode.Components;
 using Unity.Netcode.TestHelpers.Runtime;
-using UnityEngine;
 using UnityEngine.TestTools;
 
 namespace Unity.Netcode.RuntimeTests