[gtk+] notebook: Fix setting show-tabs

[Timm Bäder <baedert src gnome org>]

commit 11b8f27b76aea3947d1a62839c157cc646608917
Author: Timm Bäder <mail baedert org>
Date:   Fri Nov 3 11:22:00 2017 +0100

    notebook: Fix setting show-tabs
    
    show-tabs=FALS means the notebook is not supposed to show tabs,
    regardless of whether it has a current page or not.

 gtk/gtknotebook.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtknotebook.c b/gtk/gtknotebook.c
index 870f985..65be844 100644
--- a/gtk/gtknotebook.c
+++ b/gtk/gtknotebook.c
@@ -6191,8 +6191,8 @@ gtk_notebook_set_show_tabs (GtkNotebook *notebook,
           else
             gtk_widget_hide (page->tab_label);
         }
-      gtk_widget_set_visible (priv->header_widget,
-                              gtk_notebook_has_current_page (notebook));
+
+      gtk_widget_hide (priv->header_widget);
     }
   else
     {