Author: Sam Hemelryk
Revert "MDL-30935_in_lti_change_role_from_instructor_to_teacher"
This reverts commit 0758f991b36bdccb429b08a05ccbafe1d7ad977d.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=1609f3cf7cbcd0c34cfbe24249bf27145704db4f
http://github.com/moodle/moodle/commit/1609f3cf7cbcd0c34cfbe24249bf27145704db4f
+ 2.3 en [delegate,mod_lti]
+ 2.3 en [imsroleadmin,mod_lti]
+ 2.3 en [imsroleinstructor,mod_lti]