Update with cleaning out unused code. And some formatting.

HDPipeline/HDUnlitSubShader.cs

             return resultPass;
         }
 
-        public IMasterNode owner { get; set; }
-
         public string GetSubshader(IMasterNode inMasterNode, GenerationMode mode)
         {
             var masterNode = inMasterNode as UnlitMasterNode;
             subShader.AddShaderChunk("}", true);
 
             return subShader.GetShaderString(0);
-        }
-
-        public VisualElement CreateSettingsElement()
-        {
-            return null;
-        }
-
-        public void UpdateAfterDeserialization()
-        {
         }
     }
 }

com.unity.shadergraph/Editor/Data/MasterNodes/PBRMasterNode.cs

         protected override VisualElement CreateCommonSettingsElement()
         {
             return new PBRSettingsView(this);
-            //return null;
         }
     }
 }

com.unity.shadergraph/Editor/Data/MasterNodes/UnlitMasterNode.cs

         public const int AlphaSlotId = 7;
         public const int AlphaThresholdSlotId = 8;
 
-
         [SerializeField]
         SurfaceType m_SurfaceType;