REMOVE Php utf8 encode function to fix wrong user name formatting

backported from moodle swamp repo into this dedicated repository.

lib.php

@@ -378,13 +378,13 @@ class course_request_hsh {
         $this->delete();
 
         $a = new stdClass();
-        $a->coursename = utf8_encode(format_string($course->fullname, true, array('context' => context_course::instance($course->id))));
+        $a->coursename = format_string($course->fullname, true, array('context' => context_course::instance($course->id)));
         $a->url = $CFG->wwwroot . '/course/view.php?id=' . $course->id;
 
         $a->responser = $USER->firstname . ' ' . $USER->lastname;
         $a->email = $USER->email;
         $a->telefon = $USER->phone1;
-        $a->fullname = utf8_encode($user->firstname . ' ' . $user->lastname);
+        $a->fullname = $user->firstname . ' ' . $user->lastname;
         $mailmessage = get_string('courseapprovedemail1', 'local_hsh', $a);
         if (strpos($this->properties->reason, "Daten?bernahme von:") !== false) {
             $mailmessage .= get_string('coursecopyinform', 'local_hsh', $a);