machine frame tweaks (#13248)

Closes https://github.com/space-wizards/space-station-14/issues/11547
Closes https://github.com/space-wizards/space-station-14/issues/11549

Content.Client/Construction/MachineFrameVisualizer.cs

@@ -1,23 +0,0 @@
-using Content.Shared.Construction;
-using JetBrains.Annotations;
-using Robust.Client.GameObjects;
-
-namespace Content.Client.Construction
-{
-    [UsedImplicitly]
-    public sealed class MachineFrameVisualizer : AppearanceVisualizer
-    {
-        [Obsolete("Subscribe to AppearanceChangeEvent instead.")]
-        public override void OnChangeData(AppearanceComponent component)
-        {
-            base.OnChangeData(component);
-
-            if (component.TryGetData<int>(MachineFrameVisuals.State, out var data))
-            {
-                var sprite = IoCManager.Resolve<IEntityManager>().GetComponent<ISpriteComponent>(component.Owner);
-
-                sprite.LayerSetState(0, $"box_{data}");
-            }
-        }
-    }
-}