[gtk+] docs: visuals: Do not mention deprecated GdkRGB API's

[Javier Jardón <jjardon src gnome org>]

commit 718ccc9e4ecfc9614fe1a50b1ff9d01938314a9e
Author: Javier Jardón <jjardon gnome org>
Date:   Wed Oct 6 01:09:23 2010 +0200

    docs: visuals: Do not mention deprecated GdkRGB API's
    
    Reported by Milan Bouchet-Valat in bug
    https://bugzilla.gnome.org/show_bug.cgi?id=631473

 docs/reference/gdk/tmpl/visuals.sgml |    8 ++------
 1 files changed, 2 insertions(+), 6 deletions(-)
---
diff --git a/docs/reference/gdk/tmpl/visuals.sgml b/docs/reference/gdk/tmpl/visuals.sgml
index 79e9229..cb20c06 100644
--- a/docs/reference/gdk/tmpl/visuals.sgml
+++ b/docs/reference/gdk/tmpl/visuals.sgml
@@ -18,12 +18,8 @@ of an RGB pixel may be in the top 8 bits of the pixel, or may be in the lower
 </para>
 <para>
 There are several standard visuals. The visual returned
-by gdk_visual_get_system() is the system's default
-visual. gdk_rgb_get_visual() return the visual most
-suited to displaying full-color image data. If you
-use the calls in #GdkRGB, you should create your windows
-using this visual (and the colormap returned by
-gdk_rgb_get_colormap()).
+by gdk_screen_get_system_visual() is the system's default
+visual.
 </para>
 <para>
 A number of functions are provided for determining