Author: Kathrin Osswald
MDL-61404 blocks: Removed unused strings.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=65992c2d259af0011e6bdd01beb423e3d435c016
http://github.com/moodle/moodle/commit/65992c2d259af0011e6bdd01beb423e3d435c016
- 3.5 en [leaveblanktohide,block_html]
- 3.5 en [leaveblanktohide,block_mentees]