Fix warning CS0414 instances (#36832)

Fix warning cs0414 instances

Content.Shared/Radio/EntitySystems/EncryptionKeySystem.cs

@@ -24,8 +24,6 @@ namespace Content.Shared.Radio.EntitySystems;
 public sealed partial class EncryptionKeySystem : EntitySystem
 {
     [Dependency] private readonly IPrototypeManager _protoManager = default!;
-    [Dependency] private readonly IGameTiming _timing = default!;
-    [Dependency] private readonly INetManager _net = default!;
     [Dependency] private readonly SharedToolSystem _tool = default!;
     [Dependency] private readonly SharedPopupSystem _popup = default!;
     [Dependency] private readonly SharedContainerSystem _container = default!;