kunit: Documentation: Dropped bad toctree from FAQ

This removes a toctree that was making Sphinx unhappy.

Change-Id: I20a199e49a965a1f056aaeedd578175c0ab9b26b
Signed-off-by: Brendan Higgins <brendanhiggins@google.com>

Documentation/test/faq.rst

diff --git a/Documentation/test/faq.rst b/Documentation/test/faq.rst
index 09985ed..097543d 100644
--- a/Documentation/test/faq.rst
+++ b/Documentation/test/faq.rst
@@ -2,11 +2,6 @@
 Frequently Asked Questions
 =========================================
 
-.. toctree::
-	:maxdepth: 2
-
-	faq
-
 How is this different from Autotest, kselftest, etc?
 ====================================================
 KUnit is a unit testing framework. Autotest, kselftest (and some others) are