Material cleanup (#4025)

* work

* more work

Content.Shared/GameObjects/Components/Materials/MaterialComponent.cs

@@ -1,71 +0,0 @@
-using System.Collections.Generic;
-using Content.Shared.Materials;
-using Robust.Shared.GameObjects;
-using Robust.Shared.IoC;
-using Robust.Shared.Prototypes;
-using Robust.Shared.Reflection;
-using Robust.Shared.Serialization;
-using Robust.Shared.Serialization.Manager.Attributes;
-using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype;
-
-namespace Content.Shared.GameObjects.Components.Materials
-{
-    /// <summary>
-    ///     Component to store data such as "this object is made out of steel".
-    ///     This is not a storage system for say smelteries.
-    /// </summary>
-    [RegisterComponent]
-    public class MaterialComponent : Component, ISerializationHooks
-    {
-        [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
-
-        public const string SerializationCache = "mat";
-
-        public override string Name => "Material";
-
-        [DataField("materials")] private List<MaterialDataEntry> _materials = new();
-
-        public IEnumerable<KeyValuePair<object, MaterialPrototype>> MaterialTypes
-        {
-            get
-            {
-                foreach (var entry in _materials)
-                {
-                    var prototype = _prototypeManager.Index<MaterialPrototype>(entry.Value);
-
-                    yield return new KeyValuePair<object, MaterialPrototype>(entry.Key, prototype);
-                }
-            }
-        }
-
-        [DataDefinition]
-        public class MaterialDataEntry : ISerializationHooks
-        {
-            public object Key = default!;
-
-            [DataField("key", required: true)]
-            public string StringKey = default!;
-
-            [DataField("mat", required: true, customTypeSerializer:typeof(PrototypeIdSerializer<MaterialPrototype>))]
-            public string Value = default!;
-
-            void ISerializationHooks.AfterDeserialization()
-            {
-                var refl = IoCManager.Resolve<IReflectionManager>();
-
-                if (refl.TryParseEnumReference(StringKey, out var @enum))
-                {
-                    Key = @enum;
-                    return;
-                }
-
-                Key = StringKey;
-            }
-        }
-    }
-
-    public enum MaterialKeys
-    {
-        Stack,
-    }
-}