Author: Mihail Geshoski
MDL-85012 core_grades: Remove unused string
http://git.moodle.org/gw?p=moodle.git;a=commit;h=60e96c9cb07f80cb5d83f1c0838b62a327981356
http://github.com/moodle/moodle/commit/60e96c9cb07f80cb5d83f1c0838b62a327981356
- 5.0 en [exemptpenalty,core_grades]