[gtk+] We no longer have gdktestutils

[Matthias Clasen <matthiasc src gnome org>]

commit cfb599bf671bd438f25211d1d300c6554ea71153
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Jan 16 17:49:35 2017 -0500

    We no longer have gdktestutils
    
    Update the docs build to reflect that.

 docs/reference/gdk/gdk-docs.sgml |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/docs/reference/gdk/gdk-docs.sgml b/docs/reference/gdk/gdk-docs.sgml
index 5653d74..e4665e6 100644
--- a/docs/reference/gdk/gdk-docs.sgml
+++ b/docs/reference/gdk/gdk-docs.sgml
@@ -49,7 +49,6 @@
     <xi:include href="xml/x_interaction.xml" />
     <xi:include href="xml/wayland_interaction.xml" />
     <xi:include href="xml/gdkapplaunchcontext.xml" />
-    <xi:include href="xml/gdktestutils.xml" />
   </reference>
 
   <reference>