Remove GraphTypeMapper

com.unity.shadergraph/Editor/Util/GraphTypeMapper.cs.meta

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com.unity.shadergraph/Editor/Util/GraphTypeMapper.cs

-using System;
-using UnityEditor.Experimental.UIElements.GraphView;
-
-namespace UnityEditor.Graphing.Util
-{
-    public class GraphTypeMapper : BaseTypeFactory<INode, GraphElement>
-    {
-        public GraphTypeMapper(Type fallbackType) : base(fallbackType)
-        {
-        }
-
-        protected override GraphElement InternalCreate(Type valueType)
-        {
-            return (GraphElement)Activator.CreateInstance(valueType);
-        }
-    }
-}