[gtk+] Fix make distcheck as gtkcomboboxentry does not exist anymore

[Richard Hughes <rhughes src gnome org>]

commit 1d7aabee693ddab70f94b08e8c32c684999ccf62
Author: Richard Hughes <richard hughsie com>
Date:   Mon Oct 25 10:20:10 2010 +0100

    Fix make distcheck as gtkcomboboxentry does not exist anymore

 po-properties/POTFILES.in |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/po-properties/POTFILES.in b/po-properties/POTFILES.in
index 49dbddd..e5cb227 100644
--- a/po-properties/POTFILES.in
+++ b/po-properties/POTFILES.in
@@ -55,7 +55,6 @@ gtk/gtkcolorbutton.c
 gtk/gtkcolorsel.c
 gtk/gtkcolorseldialog.c
 gtk/gtkcombobox.c
-gtk/gtkcomboboxentry.c
 gtk/gtkcontainer.c
 gtk/gtkcustompaperunixdialog.c
 gtk/gtkdialog.c