Deprecate core_course\output\activity_information class and move its code to two
new classes: core_course\output\activity_completion and core_course\output\activity_dates.
In this process refactor activity_completion improving readability and and also deprecate
renderer_base::activity_information() and core_course_renderer::render_activity_information().
We should complete the deletion process using the same
user that started it.
Added a new param to loginas() to prevent the event to be generated as
there is no need to generate an new event for that as the user didn't
explicitly loginas again.
raortegar