decal system & crayons (#5183)

Co-authored-by: Paul <ritter.paul1+git@googlemail.com>

Content.Client/Crayon/CrayonDecalVisualizer.cs

@@ -1,29 +0,0 @@
-using Content.Shared.Crayon;
-using JetBrains.Annotations;
-using Robust.Client.GameObjects;
-using Robust.Shared.GameObjects;
-using Robust.Shared.Maths;
-
-namespace Content.Client.Crayon
-{
-    [UsedImplicitly]
-    public class CrayonDecalVisualizer : AppearanceVisualizer
-    {
-        public override void OnChangeData(AppearanceComponent component)
-        {
-            base.OnChangeData(component);
-
-            var sprite = component.Owner.GetComponent<SpriteComponent>();
-
-            if (component.TryGetData(CrayonVisuals.State, out string state))
-            {
-                sprite.LayerSetState(0, state);
-            }
-
-            if (component.TryGetData(CrayonVisuals.Color, out string color))
-            {
-                sprite.LayerSetColor(0, Color.FromName(color));
-            }
-        }
-    }
-}