diff --git a/Assets/VRM/Editor/Format/VRMAOTMenu.cs b/Assets/VRM/Editor/Format/VRMAOTMenu.cs
deleted file mode 100644
index 1bcd29340..000000000
--- a/Assets/VRM/Editor/Format/VRMAOTMenu.cs
+++ /dev/null
@@ -1,308 +0,0 @@
-using System;
-using System.Linq;
-using System.Collections.Generic;
-using System.IO;
-using System.Reflection;
-using System.Text;
-using UniGLTF;
-using UniJSON;
-using UnityEditor;
-using UnityEngine;
-
-
-namespace VRM
-{
-    public static class VRMAOTMenu
-    {
-        /// <summary>
-        /// AOT向けにダミーのGenerics呼び出しを作成する
-        /// </summary>
-        public static void GenerateAOTCall()
-        {
-            var path = UnityPath.FromUnityPath("Assets/VRM/UniVRM/Scripts/AOTCall.g.cs");
-            var encoding = new UTF8Encoding(false);
-            using (var s = new MemoryStream())
-            {
-                using (var w = new StreamWriter(s, encoding))
-                {
-                    w.WriteLine(@"
-using System;
-using UniJSON;
-using UniGLTF;
-using System.Collections.Generic;
-
-
-namespace VRM {
-    public static partial class VRMAOTCall {
-        static void glTF()
-        {       
-            {       
-                var f = new JsonFormatter();
-");
-
-                    {
-                        var excludes = new List<Type>
-                        {
-                            typeof(object),
-                        };
-
-                        foreach (var t in new Type[]
-                        {
-                        typeof(string),
-                        typeof(bool),
-
-                        typeof(byte),
-                        typeof(ushort),
-                        typeof(uint),
-                        typeof(ulong),
-
-                        typeof(sbyte),
-                        typeof(short),
-                        typeof(int),
-                        typeof(long),
-
-                        typeof(float),
-                        typeof(double),
-                        typeof(Vector2),
-                        typeof(Vector3),
-                        typeof(Vector4),
-                        typeof(Quaternion),
-                        typeof(glTF),
-                        })
-                        {
-                            TraverseType("JsonValue", w, t, excludes);
-                        }
-                    }
-
-                    w.WriteLine(@"}
-
-{
-                var f = new MsgPackFormatter();
-");
-
-                    {
-                        var excludes = new List<Type>
-                        {
-                            typeof(object),
-                        };
-
-                        foreach (var t in new Type[]
-                        {
-                        typeof(string),
-                        typeof(bool),
-
-                        typeof(byte),
-                        typeof(ushort),
-                        typeof(uint),
-                        typeof(ulong),
-
-                        typeof(sbyte),
-                        typeof(short),
-                        typeof(int),
-                        typeof(long),
-
-                        typeof(float),
-                        typeof(double),
-                        typeof(Vector2),
-                        typeof(Vector3),
-                        typeof(Vector4),
-                        typeof(Quaternion),
-                        })
-                        {
-                            TraverseType("MsgPackValue", w, t, excludes);
-                        }
-                    }
-
-                    w.WriteLine(@"
-            }
-        }
-    }
-}
-");
-                }
-
-                var text = encoding.GetString(s.ToArray());
-                File.WriteAllText(path.FullPath, text.Replace("\r\n", "\n"), encoding);
-            }
-
-            path.ImportAsset();
-        }
-
-        static bool IsGenericList(Type t)
-        {
-            if (t.IsGenericType
-                && t.GetGenericTypeDefinition() == typeof(List<>))
-            {
-                return true;
-            }
-            else
-            {
-                return false;
-            }
-        }
-
-        static bool IsGenericDictionary(Type t)
-        {
-            if (t.IsGenericType
-                && t.GetGenericTypeDefinition() == typeof(Dictionary<,>)
-                && t.GetGenericArguments()[0] == typeof(string))
-            {
-                return true;
-            }
-            else
-            {
-                return false;
-            }
-        }
-
-        static IEnumerable<Type> GetNestedTypes(Type t)
-        {
-            if (t.DeclaringType == null)
-            {
-                yield break;
-            }
-
-            foreach(var x in GetNestedTypes(t.DeclaringType))
-            {
-                yield return x;
-            }
-
-            yield return t.DeclaringType;
-        }
-
-        static string GenericTypeName(Type t)
-        {
-            if (!t.IsGenericType)
-            {
-                return t.Name;
-            }
-            else
-            {
-                return t.Name.Split('`')[0]
-                    + "<"
-                    + string.Join(",", t.GetGenericArguments().Select(x => GenericTypeName(x)).ToArray())
-                    + ">"
-                    ;
-            }
-        }
-
-        static string GetTypeName(Type t)
-        {
-            var sb = new StringBuilder();
-            if (!string.IsNullOrEmpty(t.Name))
-            {
-                sb.Append(t.Namespace);
-                sb.Append(".");
-            }
-
-            foreach(var x in GetNestedTypes(t))
-            {
-                sb.Append(x.Name);
-                sb.Append(".");
-            }
-
-            sb.Append(GenericTypeName(t));
-
-            return sb.ToString();
-        }
-
-        static void TraverseType(string value, TextWriter w, Type t, List<Type> excludes)
-        {
-            if (excludes.Contains(t))
-            {
-                return;
-            }
-
-            w.WriteLine();
-            w.WriteLine("// $0".Replace("$0", t.Name));
-            excludes.Add(t);
-
-            if (t.IsArray)
-            {
-                var valueType = t.GetElementType();
-                w.WriteLine("f.Serialize(default($0[]));".Replace("$0", valueType.Name));
-                w.WriteLine(@"{
-var value = default($0[]);
-default(ListTreeNode<$2>).Deserialize(ref value);
-GenericDeserializer<$2, $0[]>.GenericArrayDeserializer<$0>(default(ListTreeNode<$2>));
-}"
-.Replace("$0", valueType.Name)
-.Replace("$2", value)
-);
-
-                return;
-            }
-
-            {
-                // list
-                if (IsGenericList(t))
-                {
-                    var name = GetTypeName(t.GetGenericArguments()[0]);
-                    w.WriteLine("f.Serialize(default(List<$0>));".Replace("$0", name));
-                    w.WriteLine(@"{
-var value = default(List<$0>);
-default(ListTreeNode<$2>).Deserialize(ref value);
-GenericDeserializer<$2, List<$0>>.GenericListDeserializer<$0>(default(ListTreeNode<$2>));
-}"
-.Replace("$0", name)
-.Replace("$2", value)
-);
-
-                    TraverseType(value, w, t.GetGenericArguments()[0], excludes);
-
-                    return;
-                }
-            }
-
-            {
-                // dict
-                if (IsGenericDictionary(t))
-                {
-                    var name = GetTypeName(t.GetGenericArguments()[1]);
-                    w.WriteLine("f.Serialize(default(Dictionary<string, $0>));".Replace("$0", name));
-                    w.WriteLine(@"{
-var value = default(Dictionary<string, $0>);
-default(ListTreeNode<$2>).Deserialize(ref value);
-GenericDeserializer<$2, Dictionary<string, $0>>.DictionaryDeserializer<$0>(default(ListTreeNode<$2>));
-}"
-.Replace("$0", name)
-.Replace("$2", value)
-);
-
-                    TraverseType(value, w, t.GetGenericArguments()[1], excludes);
-                    return;
-                }
-            }
-
-            {
-                var name = GetTypeName(t);
-                w.WriteLine("f.Serialize(default($0));".Replace("$0", name));
-                w.WriteLine(@"{
-var value = default($0);
-default(ListTreeNode<$2>).Deserialize(ref value);
-}"
-.Replace("$0", name)
-.Replace("$2", value)
-);
-            }
-
-            // object
-            //if (t.IsClass)
-            {
-                foreach (var fi in t.GetFields(BindingFlags.Public | BindingFlags.Instance))
-                {
-                    var fieldTypeName = GetTypeName(fi.FieldType);
-                    w.WriteLine(@"{
-JsonObjectValidator.GenericDeserializer<$2,$0>.DeserializeField<$1>(default(JsonSchema), default(ListTreeNode<$2>));
-}"
-.Replace("$0", GetTypeName(t))
-.Replace("$1", GetTypeName(fi.FieldType))
-.Replace("$2", value)
-);
-
-                    TraverseType(value, w, fi.FieldType, excludes);
-                }
-            }
-        }
-    }
-}
diff --git a/Assets/VRM/Editor/Format/VRMAOTMenu.cs.meta b/Assets/VRM/Editor/Format/VRMAOTMenu.cs.meta
deleted file mode 100644
index 1fd39a6d1..000000000
--- a/Assets/VRM/Editor/Format/VRMAOTMenu.cs.meta
+++ /dev/null
@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: 400503f201487874f93b0efdc892cbf3
-timeCreated: 1550040672
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 
diff --git a/Assets/VRM/Editor/VrmTopMenu.cs b/Assets/VRM/Editor/VrmTopMenu.cs
index c85fce7be..dfd6bebd5 100644
--- a/Assets/VRM/Editor/VrmTopMenu.cs
+++ b/Assets/VRM/Editor/VrmTopMenu.cs
@@ -50,9 +50,6 @@ namespace VRM
         [MenuItem(DevelopmentMenuPrefix + "/Generate Serialization Code", priority = 30)]
         private static void GenerateSerializer() => VRMAOTCodeGenerator.GenerateCode();
 
-        [MenuItem(DevelopmentMenuPrefix + "/Generate AOTCall", priority = 31)]
-        private static void GenerateAOTCall() => VRMAOTMenu.GenerateAOTCall();
-
         [MenuItem(DevelopmentMenuPrefix + "/Version Dialog", priority = 32)]
         private static void ShowVersionDialog() => VRMVersionMenu.ShowVersionDialog();