Git commits in Moodle 3.8.3 by Daniel Thies

commit 4a2e0b810f05151c613068dc701e613dd1752365
Author: Daniel Thies <dethies@gmail.com>
Date:   Sun, 20 Oct 2019 12:59:14 +0800
Tag:    v3.8.3

MDL-66671 enrol_lti: Skip grade sync when cm deleted