[glib] GActionGroup: fix an annotation

[Matthias Clasen <matthiasc src gnome org>]

commit eeae7950fca962e65a5e08cfceae372782f5cc7e
Author: Ryan Lortie <desrt desrt ca>
Date:   Sun May 25 11:21:06 2014 +0200

    GActionGroup: fix an annotation
    
    .get_action_state_type() does not return a copy.
    
    We remove the annotation entirely because it is evident from the 'const'
    on the return type.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=730168

 gio/gactiongroup.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/gio/gactiongroup.c b/gio/gactiongroup.c
index fcedb95..1df6879 100644
--- a/gio/gactiongroup.c
+++ b/gio/gactiongroup.c
@@ -432,8 +432,7 @@ g_action_group_get_action_parameter_type (GActionGroup *action_group,
  * possible for an action to be removed and for a new action to be added
  * with the same name but a different state type.
  *
- * Returns: (nullable) (transfer full): the state type, if the action
- * is stateful
+ * Returns: (nullable): the state type, if the action is stateful
  *
  * Since: 2.28
  **/