[gtk+] Fix doc build

[Yosef Or Boczko <yoseforb src gnome org>]

commit 598123fe25bf4a7403a0a42ed3134b1da2adb667
Author: Yosef Or Boczko <yoseforb src gnome org>
Date:   Mon Feb 17 11:43:55 2014 +0200

    Fix doc build

 docs/reference/gtk/gtk-docs.sgml |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/docs/reference/gtk/gtk-docs.sgml b/docs/reference/gtk/gtk-docs.sgml
index f4497a5..dc726b1 100644
--- a/docs/reference/gtk/gtk-docs.sgml
+++ b/docs/reference/gtk/gtk-docs.sgml
@@ -75,7 +75,6 @@
       <xi:include href="xml/gtkflowbox.xml" />
       <xi:include href="xml/gtkstack.xml" />
       <xi:include href="xml/gtkstackswitcher.xml" />
-      <xi:include href="xml/gtkcenterbox.xml" />
       <xi:include href="xml/gtkactionbar.xml" />
       <xi:include href="xml/gtkheaderbar.xml" />
       <xi:include href="xml/gtkoverlay.xml" />