MaterialComponent cleanup (#13326)

Content.Shared/Materials/MaterialComponent.cs

@@ -1,6 +1,4 @@
-using System.Linq;
 using Robust.Shared.GameStates;
-using Robust.Shared.Prototypes;
 using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype.Dictionary;
 
 namespace Content.Shared.Materials
@@ -13,29 +11,6 @@ namespace Content.Shared.Materials
     public sealed class MaterialComponent : Component
     {
         [DataField("materials", customTypeSerializer:typeof(PrototypeIdDictionarySerializer<int, MaterialPrototype>))]
-        // ReSharper disable once CollectionNeverUpdated.Local
-        public readonly Dictionary<string, int> _materials = new();
-        public List<string> MaterialIds => _materials.Keys.ToList();
-
-        /// <summary>
-        ///     Returns all materials which make up this entity.
-        ///     This property has an IoC resolve and is generally slow, so be sure to cache the results if needed.
-        /// </summary>
-        [ViewVariables]
-        public IEnumerable<MaterialPrototype> Materials
-        {
-            get
-            {
-                var prototypeManager = IoCManager.Resolve<IPrototypeManager>();
-
-                foreach (var id in MaterialIds)
-                {
-                    if(prototypeManager.TryIndex<MaterialPrototype>(id, out var material))
-                        yield return material;
-                    else
-                        Logger.Error($"Material prototype {id} does not exist! Entity: {Owner}");
-                }
-            }
-        }
+        public readonly Dictionary<string, int> Materials = new();
     }
 }