sw: -Werror=unused-variable

Change-Id: Id0f3e7a8048953894a8b9a2deeed1284d38d709f

sw/source/core/layout/frmtool.cxx

@@ -1246,7 +1246,6 @@ void InsertCnt_( SwLayoutFrame *pLay, SwDoc *pDoc,
     SwPageFrame *pPage = pLay->FindPageFrame();
     const SwFrameFormats *pTable = pDoc->GetSpzFrameFormats();
     SwFrame       *pFrame = nullptr;
-    bool bBreakAfter = false;
     SwActualSection *pActualSection = nullptr;
     SwLayHelper *pPageMaker;