[glib/portal] Avoid an extraneous cast

[Matthias Clasen <matthiasc src gnome org>]

commit f700245891d16646cb1a70c54179994c61ac11fa
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Jul 6 19:30:23 2016 -0400

    Avoid an extraneous cast
    
    Cosimo pointed out that this is unnecessary.

 gio/gnetworkmonitorportal.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gio/gnetworkmonitorportal.c b/gio/gnetworkmonitorportal.c
index 0d3aeb1..7f1e7c1 100644
--- a/gio/gnetworkmonitorportal.c
+++ b/gio/gnetworkmonitorportal.c
@@ -144,7 +144,7 @@ g_network_monitor_portal_initable_init (GInitable     *initable,
 
   g_free (name_owner);
 
-  g_signal_connect (G_OBJECT (proxy), "changed", G_CALLBACK (proxy_changed), nm);
+  g_signal_connect (proxy, "changed", G_CALLBACK (proxy_changed), nm);
   nm->priv->proxy = proxy;
   nm->priv->network_available = glib_network_available_in_sandbox ();