Warning fixes for OpenWatcom.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@29961 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/grid.cpp

@@ -206,7 +206,7 @@ public:
                   wxGridRowLabelWindow *rowLblWin,
                   wxGridColLabelWindow *colLblWin,
                   wxWindowID id, const wxPoint &pos, const wxSize &size );
-    ~wxGridWindow();
+    ~wxGridWindow(){}
 
     void ScrollWindow( int dx, int dy, const wxRect *rect );
 
@@ -3700,11 +3700,6 @@ wxGridWindow::wxGridWindow( wxGrid *parent,
 }
 
 
-wxGridWindow::~wxGridWindow()
-{
-}
-
-
 void wxGridWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
 {
     wxPaintDC dc( this );