Remove unused IoC dependency references. (#31704)

Remove unused IoC dependencies

Content.Server/MassMedia/Systems/NewsSystem.cs

@@ -35,7 +35,6 @@ public sealed class NewsSystem : SharedNewsSystem
     [Dependency] private readonly PopupSystem _popup = default!;
     [Dependency] private readonly StationSystem _station = default!;
     [Dependency] private readonly GameTicker _ticker = default!;
-    [Dependency] private readonly AccessReaderSystem _accessReader = default!;
     [Dependency] private readonly IdCardSystem _idCardSystem = default!;
     [Dependency] private readonly IChatManager _chatManager = default!;