Supress toctree directive

toctree dircetive not useful for this page
toctree directive generates bad title for the global release note table

Issue-ID: DOC-567

Signed-off-by: Eric Debeau <eric.debeau@orange.com>
Change-Id: Ief2c8bfa01f178f6d30bc25cc1030a0d1332d589
diff --git a/docs/release-notes.rst b/docs/release-notes.rst
index 8305737..357ea9b 100644
--- a/docs/release-notes.rst
+++ b/docs/release-notes.rst
@@ -1,9 +1,6 @@
 .. This work is licensed under a Creative Commons Attribution 4.0 International License.
 .. http://creativecommons.org/licenses/by/4.0
 
-.. toctree::
-   :maxdepth: 2
-
 Release-notes
 ==============