[glib] docs: Remove a mention of g_clear_object() being atomic

[Philip Withnall <pwithnall src gnome org>]

commit e98a5828d3ada47b080ab6d69c9349e2c5a4ee5d
Author: Philip Withnall <philip withnall collabora co uk>
Date:   Tue Dec 16 11:23:12 2014 +0000

    docs: Remove a mention of g_clear_object() being atomic
    
    It is no longer atomic.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=741589

 docs/reference/gobject/tut_howto.xml |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/docs/reference/gobject/tut_howto.xml b/docs/reference/gobject/tut_howto.xml
index 7ca120c..f3d6060 100644
--- a/docs/reference/gobject/tut_howto.xml
+++ b/docs/reference/gobject/tut_howto.xml
@@ -439,7 +439,7 @@ maman_bar_dispose (GObject *gobject)
 
   /* dispose() might be called multiple times, so we must guard against
    * calling g_object_unref() on an invalid GObject by setting the member
-   * NULL; g_clear_object() does this for us, atomically.
+   * NULL; g_clear_object() does this for us.
    */
   g_clear_object (&amp;self->priv->an_object);