coverity#1130491 Unused pointer value

Change-Id: I6de205be4c35a0f06fa9c16671b99d44fb47f9d5

sw/source/core/view/viewsh.cxx

@@ -615,10 +615,9 @@ void SwViewShell::UpdateAllCharts()
 sal_Bool SwViewShell::HasCharts() const
 {
     sal_Bool bRet = sal_False;
-    const SwStartNode *pStNd;
     SwNodeIndex aIdx( *GetDoc()->GetNodes().GetEndOfAutotext().
                         StartOfSectionNode(), 1 );
-    while ( 0 != (pStNd = aIdx.GetNode().GetStartNode()) )
+    while (aIdx.GetNode().GetStartNode())
     {
         ++aIdx;
         const SwOLENode *pNd = aIdx.GetNode().GetOLENode();