Git commits in Moodle 3.3.6 by Ankit Agarwal

commit 4d26291ddc1d84c6d8f774beb6c5fbd8cfaf3c02
Author: Ankit Agarwal <ankit@moodle.com>
Date:   Thu, 11 May 2017 13:16:14 +0800
Tag:    v3.3.6

MDL-51362 libraries: Remove deprecated admin tool unittest