[gtk/wip/baedert/for-master] stacksidebar: Set GtkListBox:show-separators

[Timm Bäder <baedert src gnome org>]

commit 7c9c8f8967f6173b94d4375095ec9fd320fc029c
Author: Timm Bäder <mail baedert org>
Date:   Sun Oct 11 19:30:15 2020 +0200

    stacksidebar: Set GtkListBox:show-separators
    
    Instead of doing this ourselves

 gtk/gtkstacksidebar.c | 17 +----------------
 1 file changed, 1 insertion(+), 16 deletions(-)
---
diff --git a/gtk/gtkstacksidebar.c b/gtk/gtkstacksidebar.c
index f7bbe3939e..a9f5f24c08 100644
--- a/gtk/gtkstacksidebar.c
+++ b/gtk/gtkstacksidebar.c
@@ -122,20 +122,6 @@ gtk_stack_sidebar_get_property (GObject    *object,
     }
 }
 
-static void
-update_header (GtkListBoxRow *row,
-               GtkListBoxRow *before,
-               gpointer       userdata)
-{
-  GtkWidget *ret = NULL;
-
-  if (before && !gtk_list_box_row_get_header (row))
-    {
-      ret = gtk_separator_new (GTK_ORIENTATION_HORIZONTAL);
-      gtk_list_box_row_set_header (row, ret);
-    }
-}
-
 static void
 gtk_stack_sidebar_row_selected (GtkListBox    *box,
                                 GtkListBoxRow *row,
@@ -164,11 +150,10 @@ gtk_stack_sidebar_init (GtkStackSidebar *self)
   gtk_widget_set_parent (sw, GTK_WIDGET (self));
 
   self->list = GTK_LIST_BOX (gtk_list_box_new ());
+  gtk_list_box_set_show_separators (GTK_LIST_BOX (self->list), TRUE);
 
   gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), GTK_WIDGET (self->list));
 
-  gtk_list_box_set_header_func (self->list, update_header, self, NULL);
-
   g_signal_connect (self->list, "row-selected",
                     G_CALLBACK (gtk_stack_sidebar_row_selected), self);