OpenGL changes for carbon and cocoa

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61907 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/osx/glcanvas_osx.cpp

@@ -35,8 +35,6 @@
 
 #include "wx/osx/private.h"
 
-#include <AGL/agl.h>
-
 // ----------------------------------------------------------------------------
 // wxGLCanvas
 // ----------------------------------------------------------------------------
@@ -147,15 +145,6 @@ bool wxGLCanvasBase::IsDisplaySupported(const int *attribList)
     return true;
 }
 
-bool wxGLCanvas::SwapBuffers()
-{
-    WXGLContext context = WXGLGetCurrentContext();
-    wxCHECK_MSG(context, false, wxT("should have current context"));
-
-    WXGLSwapBuffers(context);
-    return true;
-}
-
 bool wxGLCanvasBase::IsExtensionSupported(const char *extension)
 {
     // we need a valid context to query for extensions.