Cleanup warning CS0414 (#37648)

Content.Shared/Implants/SharedSubdermalImplantSystem.cs

@@ -14,7 +14,6 @@ namespace Content.Shared.Implants;
 
 public abstract class SharedSubdermalImplantSystem : EntitySystem
 {
-    [Dependency] private readonly INetManager _net = default!;
     [Dependency] private readonly SharedActionsSystem _actionsSystem = default!;
     [Dependency] private readonly SharedContainerSystem _container = default!;
     [Dependency] private readonly TagSystem _tag = default!;