Git commits in Moodle 3.5.9 by cescobedo

commit 1312197a821ddddf5260ffd85569937977b78a54
Author: cescobedo <carlos.escobedo@gmail.com>
Date:   Thu, 07 Nov 2019 17:17:28 +0800
Tag:    v3.5.9

MDL-66683 core: Revert MDL-66181 because created regressions


commit b49b76f3974793ca6a4238564e4a25208087b7e2
Author: cescobedo <carlos.escobedo@gmail.com>
Date:   Wed, 06 Nov 2019 20:37:09 +0800
Tag:    v3.5.9

MDL-66257 tool_cohortroles: Unassign the role on removal cohortroles.