Updated openstack/openstack
Project: openstack/nova  374418085dc3eb28c578de7bdf0c6b9bee1f1f68

Remove api reference section in devref

This previously just linked to api/autoindex which was removed in
I6c93f9aae1994961fdca690742398a0d540d541f (in 2011).

Change-Id: Iba86a5b84743fe6d65b797a2e9237d037c2bf1a8