SwLayAction::FormatLayout: avoid direct DrawRect()

Regression from commit 1d9e8376 (Use
GetBoundRect() instead of Frm() in layout., 2011-04-29), this causes
problems for double-buffered rendering and also seems to be pointless,
as just above we already added the rectangle to the repaint area.

Change-Id: I3dc67143e8332ab941a683414ee318dbef13de88

sw/source/core/layout/layact.cxx

@@ -1335,9 +1335,6 @@ bool SwLayAction::FormatLayout( OutputDevice *pRenderContext, SwLayoutFrm *pLay,
                     if(aSpaceToPrevPage.Height() > 0 && aSpaceToPrevPage.Width() > 0)
                         pImp->GetShell()->AddPaintRect( aSpaceToPrevPage );
 
-                    if (pSh)
-                        pRenderContext->DrawRect( aSpaceToPrevPage.SVRect() );
-
                     // left
                     aSpaceToPrevPage = aPageRect;
                     aSpaceToPrevPage.Left( aSpaceToPrevPage.Left() - nHalfDocBorder );