declare default dtor as virtual

Change-Id: Ic77dbe3ffb2d2856d437158914b877b913296e0e

connectivity/source/drivers/file/fcode.cxx

@@ -32,16 +32,6 @@ using namespace connectivity::file;
 using namespace ::com::sun::star::sdbc;
 using namespace ::com::sun::star::sdb;
 
-
-OCode::OCode()
-{
-}
-
-OCode::~OCode()
-{
-}
-
-
 OOperandRow::OOperandRow(sal_uInt16 _nPos, sal_Int32 _rType)
     : OOperand(_rType)
     , m_nRowPos(_nPos)

connectivity/source/inc/file/fcode.hxx

@@ -44,8 +44,7 @@ namespace connectivity
         class OOO_DLLPUBLIC_FILE OCode
         {
         public:
-            OCode();
-            virtual ~OCode();
+            virtual ~OCode() = default;
 
             inline static void * SAL_CALL operator new( size_t nSize )
                 { return ::rtl_allocateMemory( nSize ); }