[gtk+] printing: Remove usage of GError in connection test

[Marek Kašík <mkasik src gnome org>]

commit a727117acf0e3725822ecbfff648306853d91930
Author: Marek Kasik <mkasik redhat com>
Date:   Wed Mar 13 15:24:50 2013 +0100

    printing: Remove usage of GError in connection test
    
    Really remove usage of error in previous commit.
    
    Related to
    https://bugzilla.gnome.org/show_bug.cgi?id=695714

 modules/printbackends/cups/gtkprintbackendcups.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/modules/printbackends/cups/gtkprintbackendcups.c 
b/modules/printbackends/cups/gtkprintbackendcups.c
index 331b73e..a8c8060 100644
--- a/modules/printbackends/cups/gtkprintbackendcups.c
+++ b/modules/printbackends/cups/gtkprintbackendcups.c
@@ -2541,7 +2541,7 @@ avahi_connection_test_cb (GObject      *source_object,
 
   connection = g_socket_client_connect_to_host_finish (G_SOCKET_CLIENT (source_object),
                                                        res,
-                                                       &error);
+                                                       NULL);
   g_object_unref (source_object);
 
   if (connection != NULL)