[gnome-settings-daemon] smartcard: Fix run-time warning

[Bastien Nocera <hadess src gnome org>]

commit 2471d66ab89d06aabfbe395e56e35b0b7d50bff0
Author: Bastien Nocera <hadess hadess net>
Date:   Mon Sep 23 16:56:35 2013 +0200

    smartcard: Fix run-time warning
    
    Don't unref a destroyed GTask
    
    https://bugzilla.gnome.org/show_bug.cgi?id=708536

 plugins/smartcard/gsd-smartcard-manager.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/plugins/smartcard/gsd-smartcard-manager.c b/plugins/smartcard/gsd-smartcard-manager.c
index c7951c4..78f14a3 100644
--- a/plugins/smartcard/gsd-smartcard-manager.c
+++ b/plugins/smartcard/gsd-smartcard-manager.c
@@ -346,7 +346,6 @@ on_driver_registered (GsdSmartcardManager *self,
 
         if (!register_driver_finish (self, result, &error)) {
                 g_task_return_error (task, error);
-                g_object_unref (task);
                 return;
         }