[gtk+/gtk-3-16] Remove a redundant const

[Matthias Clasen <matthiasc src gnome org>]

commit c30f74e506985476097624ebc5d69ebefdd559b1
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Mar 22 15:18:35 2015 -0400

    Remove a redundant const
    
    const gchar const is still just const gchar, unless there's
    indirections in between.

 gtk/gtkprintunixdialog.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkprintunixdialog.c b/gtk/gtkprintunixdialog.c
index cca1dc5..9f994cf 100644
--- a/gtk/gtkprintunixdialog.c
+++ b/gtk/gtkprintunixdialog.c
@@ -207,7 +207,7 @@ static GObject *gtk_print_unix_dialog_buildable_get_internal_child  (GtkBuildabl
                                                                      GtkBuilder   *builder,
                                                                      const gchar  *childname);
 
-static const gchar const common_paper_sizes[][16] = {
+static const gchar common_paper_sizes[][16] = {
   "na_letter",
   "na_legal",
   "iso_a4",