[gtk+] gdkglcontext-win32.h: Clean Up a Bit

[Chun-wei Fan <fanchunwei src gnome org>]

commit 0b06b1e3f7565620372382760897b5a9895fc339
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Fri Feb 6 13:00:21 2015 +0800

    gdkglcontext-win32.h: Clean Up a Bit
    
    We don't have a Win32-specific ->upload_texture() anymore, so don't
    indicate so.  Left out this part from my previous commit.

 gdk/win32/gdkglcontext-win32.h |    7 -------
 1 files changed, 0 insertions(+), 7 deletions(-)
---
diff --git a/gdk/win32/gdkglcontext-win32.h b/gdk/win32/gdkglcontext-win32.h
index 7ee9b5e..2044512 100644
--- a/gdk/win32/gdkglcontext-win32.h
+++ b/gdk/win32/gdkglcontext-win32.h
@@ -68,13 +68,6 @@ _gdk_win32_gl_context_end_frame (GdkGLContext *context,
                                  cairo_region_t *painted,
                                  cairo_region_t *damage);
 
-void
-_gdk_win32_gl_context_upload_texture (GdkGLContext *context,
-                                      cairo_surface_t *image_surface,
-                                      int width,
-                                      int height,
-                                      guint texture_target);
-
 gboolean
 _gdk_win32_display_make_gl_context_current (GdkDisplay *display,
                                             GdkGLContext *context);