coverity#1187648 Logically dead code

Change-Id: I9d5425383600fa7c621f58ded52a211f4424575a

sw/source/core/layout/trvlfrm.cxx

@@ -884,7 +884,7 @@ static bool lcl_UpDown( SwPaM *pPam, const SwCntntFrm *pStart,
                             nX += pTab->Frm().Left() - pTable->Frm().Left();
                         pTable = pTab;
                     }
-                    const SwLayoutFrm *pCell = pTable ? pCnt->GetUpper() : 0;
+                    const SwLayoutFrm *pCell = pCnt->GetUpper();
                     while ( pCell && !pCell->IsCellFrm() )
                         pCell = pCell->GetUpper();