[rhythmbox] Remove extra border of error dialog

[Jonathan Matthew <jmatthew src gnome org>]

commit 813a063a8756c9977fdcb418a8f0bc176deef450
Author: Trinh Anh Ngoc <atw1990 gmail com>
Date:   Fri Mar 20 14:17:36 2015 +0700

    Remove extra border of error dialog
    
    From Gnome 3.14, message dialog style will be broken if add extra border to dialog.

 widgets/rb-dialog.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/widgets/rb-dialog.c b/widgets/rb-dialog.c
index 5cef00d..8504ebc 100644
--- a/widgets/rb-dialog.c
+++ b/widgets/rb-dialog.c
@@ -90,8 +90,6 @@ rb_error_dialog (GtkWindow *parent,
 
        gtk_window_set_title (GTK_WINDOW (dialog), "");
 
-       gtk_container_set_border_width (GTK_CONTAINER (dialog), 6);
-
        g_signal_connect (dialog, "response", G_CALLBACK (gtk_widget_destroy), NULL);
 
        gtk_widget_show (dialog);