Revert "add dummy oglcanvas::SpriteCanvas::copyRect so this compiles..."

With the XCanvas / XBitmapCanvas revert in, this can go, too.

This reverts commit f0d93fab.

canvas/source/opengl/ogl_spritecanvas.hxx

@@ -88,19 +88,6 @@ namespace oglcanvas
         virtual ::sal_Bool SAL_CALL showBuffer( ::sal_Bool bUpdateAll ) throw (::com::sun::star::uno::RuntimeException);
         virtual ::sal_Bool SAL_CALL switchBuffer( ::sal_Bool bUpdateAll ) throw (::com::sun::star::uno::RuntimeException);
 
-        // XBitmapCanvas
-        virtual void SAL_CALL copyRect(
-                const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmapCanvas >&  /*sourceCanvas*/,
-                const ::com::sun::star::geometry::RealRectangle2D& /*sourceRect*/,
-                const ::com::sun::star::rendering::ViewState& /*sourceViewState*/,
-                const ::com::sun::star::rendering::RenderState& /*sourceRenderState*/,
-                const ::com::sun::star::geometry::RealRectangle2D& /*destRect*/,
-                const ::com::sun::star::rendering::ViewState& /*destViewState*/,
-                const ::com::sun::star::rendering::RenderState& /*destRenderState*/)
-            throw (::com::sun::star::lang::IllegalArgumentException,
-                   ::com::sun::star::uno::RuntimeException)
-            { assert(false); }
-
         // XSpriteCanvas
         virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XAnimatedSprite > SAL_CALL createSpriteFromAnimation( const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XAnimation >& animation ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException);
         virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XAnimatedSprite > SAL_CALL createSpriteFromBitmaps( const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmap > >& animationBitmaps, ::sal_Int8 interpolationMode ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::rendering::VolatileContentDestroyedException, ::com::sun::star::uno::RuntimeException);