[seahorse] GKR: remove redundant close button.

[Niels De Graef <nielsdg src gnome org>]

commit e05f9e942b9aff9a0c37572df8fabc5276021a90
Author: Niels De Graef <nielsdegraef gmail com>
Date:   Fri Mar 9 21:13:02 2018 +0100

    GKR: remove redundant close button.

 gkr/gkr-item-properties.vala |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/gkr/gkr-item-properties.vala b/gkr/gkr-item-properties.vala
index 8ca21a0..f7a408d 100644
--- a/gkr/gkr-item-properties.vala
+++ b/gkr/gkr-item-properties.vala
@@ -39,7 +39,6 @@ public class ItemProperties : Gtk.Dialog {
                        GLib.critical ("%s", err.message);
                }
 
-               this.add_button(Gtk.Stock.CLOSE, Gtk.ResponseType.CLOSE);
                var content = (Gtk.Widget)this._builder.get_object("gkr-item-properties");
                ((Gtk.Container)this.get_content_area()).add(content);
                content.show();