removed references to OCC<7

src/Mod/Part/App/modelRefine.cpp

@@ -1250,16 +1250,6 @@ void Part::BRepBuilderAPI_RefineModel::Build()
             }
         }
         myShape = mkSolid.Solid();
-
-#if OCC_VERSION_HEX <= 0x060700
-        // With occ 6.7 and older it can happen that a solid is flipped.
-        // In this case it must be reversed
-        GProp_GProps props;
-        BRepGProp::VolumeProperties(myShape, props);
-        if (props.Mass() < 0) {
-            myShape.Reverse();
-        }
-#endif
     }
     else if (myShape.ShapeType() == TopAbs_SHELL) {
         const TopoDS_Shell& shell = TopoDS::Shell(myShape);