[dia] Remove deprecated function gdk_rgb_init().

[Hans Breuer <hans src gnome org>]

commit f5eed6eb051943a168752666dc9d77910432b188
Author: Adam Buchbinder <adam buchbinder gmail com>
Date:   Mon May 4 13:51:32 2009 -0400

    Remove deprecated function gdk_rgb_init().
    
    The function no longer does anything, and the call can be removed.
    http://library.gnome.org/devel/gdk/stable/gdk-GdkRGB.html#gdk-rgb-init
    
    Signed-off-by: Adam Buchbinder <adam buchbinder gmail com>
    Signed-off-by: Hans Breuer <hans breuer org>
---
 lib/dialib.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/lib/dialib.c b/lib/dialib.c
index e4aa586..e3ad385 100644
--- a/lib/dialib.c
+++ b/lib/dialib.c
@@ -109,8 +109,6 @@ libdia_init (guint flags)
 
     dia_image_init();
 
-    gdk_rgb_init();
-
     diagtkrc = dia_config_filename("diagtkrc");
     dia_log_message ("Config from %s", diagtkrc);
     gtk_rc_parse(diagtkrc);