[gdm] drop sessions_changed class member

[William Jon McCann <mccann src gnome org>]

commit bbfc2baf28ca294c042b41fe99f0a3adfffebc36
Author: Ray Strode <rstrode redhat com>
Date:   Mon Mar 15 14:22:47 2010 -0400

    drop sessions_changed class member
    
    We're never going to have a default handler, we aren't
    going to have subclasses that need to chain up, so we don't
    need the vfunc.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=610179

 gui/simple-greeter/gdm-user.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)
---
diff --git a/gui/simple-greeter/gdm-user.c b/gui/simple-greeter/gdm-user.c
index c2faf0f..d8bd069 100644
--- a/gui/simple-greeter/gdm-user.c
+++ b/gui/simple-greeter/gdm-user.c
@@ -62,8 +62,6 @@ struct _GdmUser {
 typedef struct _GdmUserClass
 {
         GObjectClass parent_class;
-
-        void (* sessions_changed) (GdmUser *user);
 } GdmUserClass;
 
 static void gdm_user_finalize     (GObject      *object);
@@ -157,7 +155,7 @@ gdm_user_class_init (GdmUserClass *class)
                 g_signal_new ("sessions-changed",
                               G_TYPE_FROM_CLASS (class),
                               G_SIGNAL_RUN_LAST,
-                              G_STRUCT_OFFSET (GdmUserClass, sessions_changed),
+                              0,
                               NULL, NULL,
                               g_cclosure_marshal_VOID__VOID,
                               G_TYPE_NONE, 0);