Git commits in Moodle 3.0.8 by Andrew Nicols

commit a1fadacb86c8bc59c5ca0bb584f4daef73af2e03
Author: Andrew Nicols <andrew@nicols.co.uk>
Date:   Fri, 07 Oct 2016 10:56:29 +0800
Tag:    v3.0.8

MDL-56225 mod_forum: Remove unnecessary attributes from update