cppcheck: unreadVariable

Change-Id: Ia611c9a1119af65688031d16ff322f1bde43297b
diff --git a/connectivity/source/drivers/dbase/DTable.cxx b/connectivity/source/drivers/dbase/DTable.cxx
index 12b2610..6fd3ba7 100644
--- a/connectivity/source/drivers/dbase/DTable.cxx
+++ b/connectivity/source/drivers/dbase/DTable.cxx
@@ -2474,7 +2474,7 @@ void ODbaseTable::dropColumn(sal_Int32 _nPos)
    // construct the new table
    if(!pNewTable->CreateImpl())
    {
        xHold = pNewTable = NULL;
        xHold.clear();
        const OUString sError( getConnection()->getResources().getResourceStringWithSubstitution(
                STR_COLUMN_NOT_DROP,
                "$position$", OUString::number(_nPos)
@@ -2489,7 +2489,7 @@ void ODbaseTable::dropColumn(sal_Int32 _nPos)
        pNewTable->renameImpl(m_Name);
        // release the temp file

    xHold = pNewTable = NULL;
    xHold.clear();

    FileClose();
    construct();