[gnome-builder] doc: remove private API for test panel

[Christian Hergert <chergert src gnome org>]

commit aa13cbff2f0289b7795c6d4759c60ce21b889f8e
Author: Christian Hergert <chergert redhat com>
Date:   Sat Apr 21 17:29:22 2018 -0700

    doc: remove private API for test panel

 doc/sdk/libide-docs.sgml | 4 ----
 1 file changed, 4 deletions(-)
---
diff --git a/doc/sdk/libide-docs.sgml b/doc/sdk/libide-docs.sgml
index 4bdcb04c2..858471cf2 100644
--- a/doc/sdk/libide-docs.sgml
+++ b/doc/sdk/libide-docs.sgml
@@ -332,10 +332,6 @@
       <xi:include href="xml/ide-test-provider.xml"/>
       <xi:include href="xml/ide-test.xml"/>
     </chapter>
-    <chapter>
-      <title>Widgets</title>
-      <xi:include href="xml/ide-test-panel.xml"/>
-    </chapter>
   </part>
 
   <part id="libide-projects">