[gnome-todo] window: Remove obsolete method

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 55ed418e02e335d371836e08f6d16b1f579d6a60
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Sat May 2 08:48:31 2020 -0300

    window: Remove obsolete method

 src/gtd-window.c | 28 ----------------------------
 src/gtd-window.h |  4 ----
 2 files changed, 32 deletions(-)
---
diff --git a/src/gtd-window.c b/src/gtd-window.c
index 9d08267..19ef0a0 100644
--- a/src/gtd-window.c
+++ b/src/gtd-window.c
@@ -688,34 +688,6 @@ gtd_window_cancel_notification (GtdWindow       *self,
   gtd_notification_widget_cancel (self->notification_widget, notification);
 }
 
-/**
- * gtd_window_set_custom_title:
- * @window: a #GtdWindow
- * @title: (nullable): the #GtkHeaderBar title
- * @subtitle: (nullable): the #GtkHeaderBar subtitle
- *
- * Sets the #GtdWindow's headerbar title and subtitle. If @title is %NULL,
- * the header will be set to the stack switcher.
- */
-void
-gtd_window_set_custom_title (GtdWindow   *self,
-                             const gchar *title,
-                             const gchar *subtitle)
-{
-  g_return_if_fail (GTD_IS_WINDOW (self));
-
-  if (title)
-    {
-      gtk_header_bar_set_custom_title (self->headerbar, NULL);
-      gtk_header_bar_set_title (self->headerbar, title);
-      gtk_header_bar_set_subtitle (self->headerbar, subtitle);
-    }
-  else
-    {
-      gtk_header_bar_set_title (self->headerbar, _("To Do"));
-    }
-}
-
 /**
  * gtd_window_embed_widget_in_header:
  * @self: a #GtdWindow
diff --git a/src/gtd-window.h b/src/gtd-window.h
index cf6b656..fcb1c04 100644
--- a/src/gtd-window.h
+++ b/src/gtd-window.h
@@ -40,10 +40,6 @@ void                      gtd_window_notify               (GtdWindow
 void                      gtd_window_cancel_notification  (GtdWindow             *window,
                                                            GtdNotification      *notification);
 
-void                      gtd_window_set_custom_title     (GtdWindow             *window,
-                                                           const gchar           *title,
-                                                           const gchar           *subtitle);
-
 void                      gtd_window_embed_widget_in_header (GtdWindow           *self,
                                                              GtkWidget           *widget,
                                                              GtkPositionType      position);