Related: rhbz#1071604 don't paint anim. effect icon

... unless the slide does have custom animations. This drops dep of Draw
on libanimcore, which is in module impress, so it might not be present.
If it is not present, the Pages panel is not drawn.

Change-Id: I9d7377a4fb3289e230887752bc4a105ca1c9f812

sd/source/ui/slidesorter/view/SlsPageObjectPainter.cxx

@@ -94,7 +94,8 @@ void PageObjectPainter::PaintPageObject (
         PaintPreview(rDevice, rpDescriptor);
         PaintPageNumber(rDevice, rpDescriptor);
         PaintTransitionEffect(rDevice, rpDescriptor);
-        PaintCustomAnimationEffect(rDevice, rpDescriptor);
+        if (rpDescriptor->GetPage()->hasAnimationNode())
+            PaintCustomAnimationEffect(rDevice, rpDescriptor);
         rDevice.SetAntialiasing(nSavedAntialiasingMode);
     }
 }