Fix formatting

Author: EmandM

com.unity.netcode.gameobjects/Tests/Runtime/DistributedAuthority/DistributedAuthorityConnectionTest.cs

@@ -1,10 +1,6 @@
-using System;
 using System.Collections;
-using System.Linq;
-using System.Net;
 using NUnit.Framework;
 using Unity.Netcode.TestHelpers.Runtime;
-using Unity.Networking.Transport;
 using UnityEngine;
 using UnityEngine.TestTools;