[gtk/wip/baedert/for-master] gtk4-demo: Remove connection to removed signal

[Timm Bäder <baedert src gnome org>]

commit 4e890fdae0546a50688af29e05ed8cff77cdd556
Author: Timm Bäder <mail baedert org>
Date:   Sun Oct 11 19:59:00 2020 +0200

    gtk4-demo: Remove connection to removed signal

 demos/gtk-demo/builder.c | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/demos/gtk-demo/builder.c b/demos/gtk-demo/builder.c
index db44bc17f9..22c06dfa72 100644
--- a/demos/gtk-demo/builder.c
+++ b/demos/gtk-demo/builder.c
@@ -158,7 +158,6 @@ do_builder (GtkWidget *do_widget)
       about = GTK_WIDGET (gtk_builder_get_object (builder, "aboutdialog1"));
       gtk_window_set_transient_for (GTK_WINDOW (about), GTK_WINDOW (window));
       gtk_window_set_hide_on_close (GTK_WINDOW (about), TRUE);
-      g_signal_connect (about, "response", G_CALLBACK (gtk_widget_hide), NULL);
       g_object_set_data_full (G_OBJECT (window), "about",
                               about, (GDestroyNotify)gtk_window_destroy);