Size aSz constructed but not used

Change-Id: I49af25b7e5232a0309df8b08498cf33b13e279ad
Reviewed-on: https://gerrit.libreoffice.org/60693
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

cui/source/tabpages/grfpage.cxx

@@ -789,8 +789,6 @@ void SvxCropExample::Paint(vcl::RenderContext& rRenderContext, const ::tools::Re
                           aFrameSize);
     aGrf.Draw(&rRenderContext, aRect.TopLeft(), aRect.GetSize());
 
-    Size aSz(2, 0);
-    aSz = rRenderContext.PixelToLogic(aSz);
     rRenderContext.SetFillColor(COL_TRANSPARENT);
     rRenderContext.SetRasterOp(RasterOp::Invert);
     aRect.AdjustLeft(aTopLeft.Y() );