Comment out Scene Normals and Scene Velocity nodes

MaterialGraphProject/Assets/NewNodes/Editor/SceneNormalsNode.cs

 using UnityEditor.ShaderGraph.Drawing.Controls;
 using System.Collections.Generic;
 
-namespace UnityEditor.ShaderGraph
+/*namespace UnityEditor.ShaderGraph
 {
     [Title("Input", "Scene", "Scene Normals")]
     public class SceneNormalsNode : AbstractMaterialNode, IGeneratesBodyCode, IGeneratesFunction, IGenerateProperties, IMayRequireScreenPosition
             return uvSlot.RequiresScreenPosition();
         }
     }
-}
+}*/

MaterialGraphProject/Assets/NewNodes/Editor/SceneVelocityNode.cs

 using UnityEditor.ShaderGraph.Drawing.Controls;
 using System.Collections.Generic;
 
-namespace UnityEditor.ShaderGraph
+/*namespace UnityEditor.ShaderGraph
 {
     public enum SceneVelocityMode
     {
             return uvSlot.RequiresScreenPosition();
         }
     }
-}
+}*/