drop unnecessary dtors

Change-Id: I033349bc554bca46a4b1d622cd8fb64d4c1f4866

cui/source/dialogs/cuigrfflt.cxx

@@ -40,12 +40,6 @@ GraphicFilterDialog::PreviewWindow::PreviewWindow( Window* pParent, const ResId&
 
 // -----------------------------------------------------------------------------
 
-GraphicFilterDialog::PreviewWindow::~PreviewWindow()
-{
-}
-
-// -----------------------------------------------------------------------------
-
 void GraphicFilterDialog::PreviewWindow::Paint( const Rectangle& rRect )
 {
     Control::Paint( rRect );
@@ -136,12 +130,6 @@ GraphicFilterDialog::GraphicFilterDialog( Window* pParent, const ResId& rResId,
 
 // -----------------------------------------------------------------------------
 
-GraphicFilterDialog::~GraphicFilterDialog()
-{
-}
-
-// -----------------------------------------------------------------------------
-
 IMPL_LINK_NOARG(GraphicFilterDialog, ImplPreviewTimeoutHdl)
 {
     maTimer.Stop();

cui/source/inc/cuigrfflt.hxx

@@ -51,7 +51,6 @@ private:
     public:
 
         PreviewWindow( Window* pParent, const ResId& rResId );
-                        ~PreviewWindow();
 
         void            SetGraphic( const Graphic& rGraphic );
     };
@@ -81,7 +80,6 @@ protected:
 public:
 
     GraphicFilterDialog( Window* pParent, const ResId& rResId, const Graphic& rGraphic );
-                    ~GraphicFilterDialog();
 
     virtual Graphic GetFilteredGraphic( const Graphic& rGraphic, double fScaleX, double fScaleY ) = 0;
 };