Cancel by fill type edit did not work

After clicking Apply the old fill type was overwritten and canceling the
whole edit did not revert the fill type into the original value.

src/Mod/Surface/Gui/BSurf.cpp

@@ -162,7 +162,6 @@ void BSurf::apply()
     if(editedObject->filltype.getValue() != fillType)
     {
         editedObject->filltype.setValue(fillType);
-        oldFillType = fillType;
         Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.recompute()");
     }
 }