Remove a couple of unused private fields

Change-Id: Ia28d6befe63453ced7c623e76abc7a0ec7d6cbeb

connectivity/source/drivers/odbcbase/ODatabaseMetaDataResultSet.cxx

@@ -61,7 +61,6 @@ ODatabaseMetaDataResultSet::ODatabaseMetaDataResultSet(OConnection* _pConnection
     ,m_pConnection(_pConnection)
     ,m_nTextEncoding(_pConnection->getTextEncoding())
     ,m_nRowPos(-1)
-    ,m_nLastColumnPos(0)
     ,m_nDriverColumnCount(0)
     ,m_nCurrentFetchState(0)
     ,m_bWasNull(sal_True)

connectivity/source/inc/odbc/ODatabaseMetaDataResultSet.hxx

@@ -67,14 +67,12 @@ namespace connectivity
             ::std::map<sal_Int32,SWORD>                                         m_aODBCColumnTypes;
 
             SQLHANDLE                                                                   m_aStatementHandle;   // ... until freed
-            SQLHANDLE                                                                   m_aConnectionHandle;
             ::com::sun::star::uno::WeakReferenceHelper                                  m_aStatement;
             ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XResultSetMetaData>        m_xMetaData;
             SQLUSMALLINT*                               m_pRowStatusArray;
             OConnection*                                m_pConnection;
             rtl_TextEncoding                            m_nTextEncoding;
             sal_Int32                                   m_nRowPos;
-            sal_Int32                                   m_nLastColumnPos;       // used for m_aRow just to know where we are
             sal_Int32                                   m_nDriverColumnCount;   // column count of the driver wich can sometimes be less than the metadata count
             SQLRETURN                                   m_nCurrentFetchState;
             sal_Bool                                    m_bWasNull;