Remove unused IoC dependency references. (#31704)

Remove unused IoC dependencies

Content.Shared/Damage/Systems/DamageOnAttackedSystem.cs

@@ -15,8 +15,6 @@ namespace Content.Shared.Damage.Systems;
 public sealed class DamageOnAttackedSystem : EntitySystem
 {
     [Dependency] private readonly ISharedAdminLogManager _adminLogger = default!;
-    [Dependency] private readonly IGameTiming _gameTiming = default!;
-    [Dependency] private readonly INetManager _net = default!;
     [Dependency] private readonly DamageableSystem _damageableSystem = default!;
     [Dependency] private readonly SharedAudioSystem _audioSystem = default!;
     [Dependency] private readonly SharedPopupSystem _popupSystem = default!;