coverity#1437526 Unchecked return value

Change-Id: Ib1dbc34ff728475bc6473d315daa08ce13c6aa84
Reviewed-on: https://gerrit.libreoffice.org/56442
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>
diff --git a/sc/source/filter/excel/xipivot.cxx b/sc/source/filter/excel/xipivot.cxx
index b045240..5a6e640 100644
--- a/sc/source/filter/excel/xipivot.cxx
+++ b/sc/source/filter/excel/xipivot.cxx
@@ -1485,7 +1485,7 @@ void XclImpPivotTable::Convert()
    pDPObj->SetOutRange( aOutRange );
    pDPObj->SetHeaderLayout( maPTViewEx9Info.mnGridLayout == 0 );

    GetDoc().GetDPCollection()->InsertNewTable(pDPObj);
    (void)GetDoc().GetDPCollection()->InsertNewTable(pDPObj);
    mpDPObj = pDPObj;

    ApplyFieldInfo();