[gtk+] text-cell-accessible: fix a double unref

[Cosimo Cecchi <cosimoc src gnome org>]

commit f9db8007139c9ebf9f89044a1e68e69c0ade850a
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Wed Nov 7 15:46:16 2012 -0500

    text-cell-accessible: fix a double unref
    
    We're unreffing the GtkCellRenderer object twice, causing the
    application to crash when trying to access the renderer later.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=687872

 gtk/a11y/gtktextcellaccessible.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/gtk/a11y/gtktextcellaccessible.c b/gtk/a11y/gtktextcellaccessible.c
index ce5777a..7088780 100644
--- a/gtk/a11y/gtktextcellaccessible.c
+++ b/gtk/a11y/gtktextcellaccessible.c
@@ -552,7 +552,6 @@ gtk_text_cell_accessible_get_character_extents (AtkText      *text,
   gail_renderer = GTK_RENDERER_CELL_ACCESSIBLE (text);
   g_object_get (gail_renderer, "renderer", &gtk_renderer, NULL);
   g_object_get (gtk_renderer, "text", &renderer_text, NULL);
-  g_object_unref (gtk_renderer);
   if (renderer_text == NULL)
     {
       g_object_unref (gtk_renderer);