[gtk/wip/ebassi/shortcut: 84/85] filechooser: Remove outdated hack

[Emmanuele Bassi <ebassi src gnome org>]

commit 36c09f390114a1584a0052a4e79e1317d9f63c45
Author: Benjamin Otte <otte redhat com>
Date:   Sun Aug 26 18:00:52 2018 +0200

    filechooser: Remove outdated hack
    
    In GTK2, the filechooser was using a Paned, so switching between sidebar
    and files list with the arrow keys didn't work (the slider would be
    selected instead). So in
    https://bugzilla.gnome.org/show_bug.cgi?id=161489 a crude hack was added
    to make this possible.
    
    Over the years the filechooser code has changed so that it now would do
    this by default, yet the hack had been retained.

 gtk/gtkfilechooserwidget.c | 21 ---------------------
 1 file changed, 21 deletions(-)
---
diff --git a/gtk/gtkfilechooserwidget.c b/gtk/gtkfilechooserwidget.c
index a93640e18c..73c363da93 100644
--- a/gtk/gtkfilechooserwidget.c
+++ b/gtk/gtkfilechooserwidget.c
@@ -1285,21 +1285,6 @@ places_sidebar_show_error_message_cb (GtkPlacesSidebar *sidebar,
   error_message (impl, primary, secondary);
 }
 
-static gboolean
-key_is_left_or_right (guint keyval,
-                      guint state)
-{
-  guint modifiers;
-
-  modifiers = gtk_accelerator_get_default_mod_mask ();
-
-  return ((keyval == GDK_KEY_Right
-           || keyval == GDK_KEY_KP_Right
-           || keyval == GDK_KEY_Left
-           || keyval == GDK_KEY_KP_Left)
-          && (state & modifiers) == 0);
-}
-
 static gboolean
 should_trigger_location_entry (GtkFileChooserWidget *impl,
                                guint                 keyval,
@@ -1361,12 +1346,6 @@ treeview_key_press_cb (GtkEventControllerKey *controller,
       return GDK_EVENT_STOP;
     }
 
-  if (key_is_left_or_right (keyval, state))
-    {
-      if (gtk_widget_child_focus (priv->places_sidebar, GTK_DIR_LEFT))
-        return GDK_EVENT_STOP;
-    }
-
   if ((keyval == GDK_KEY_Return
        || keyval == GDK_KEY_ISO_Enter
        || keyval == GDK_KEY_KP_Enter