[gtk+] Fix memory leak in GtkTreeViewAccessible

[Matthias Clasen <matthiasc src gnome org>]

commit 7a411eb6dd4dd0dedf28f3b5414561e765886369
Author: John Lindgren <john lindgren aol com>
Date:   Sun Jan 12 07:07:00 2014 +0000

    Fix memory leak in GtkTreeViewAccessible
    
    https://bugzilla.gnome.org/show_bug.cgi?id=722030

 gtk/a11y/gtktreeviewaccessible.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/a11y/gtktreeviewaccessible.c b/gtk/a11y/gtktreeviewaccessible.c
index a3a1120..e2d0e8f 100644
--- a/gtk/a11y/gtktreeviewaccessible.c
+++ b/gtk/a11y/gtktreeviewaccessible.c
@@ -1442,7 +1442,7 @@ cell_info_new (GtkTreeViewAccessible *accessible,
   cell_info->tree = tree;
   cell_info->node = node;
   cell_info->cell_col_ref = tv_col;
-  cell_info->cell = g_object_ref (cell);
+  cell_info->cell = cell;
   cell_info->view = accessible;
 
   g_object_set_qdata (G_OBJECT (cell),