PD: Fix ShapeBinder::execute() if Support is empty

This fixes the reported regression: https://forum.freecad.org/viewtopic.php?t=87229

src/Mod/PartDesign/App/ShapeBinder.cpp

@@ -128,9 +128,6 @@ App::DocumentObjectExecReturn* ShapeBinder::execute()
             this->Placement.setValue(shape.getTransform());
             this->Shape.setValue(shape);
         }
-        else {
-            this->Shape.setValue(shape);
-        }
     }
 
     return Part::Feature::execute();