Merge pull request #6492 in DEV/moodle from feature/INT-18660_boorish-meerkat to release/4.1

* commit 'd0338ae36bd33a75dfa8f44972f2ec398c30403b':
  INT-18660: Fix mod_hsuforum deprecation for plagiarism functions
  INT-18660: Update test skip message for credentials issue for Turnitin
  MDL-67526 plagiarism: Final deprecation of plagiarism functions

Author: danielcifuentesopen

mod_form.php

@@ -217,9 +217,6 @@ function definition() {
         $mform->addHelpButton('warnafter', 'warnafter', 'hsuforum');
         $mform->disabledIf('warnafter', 'blockperiod', 'eq', 0);
 
-        $coursecontext = context_course::instance($COURSE->id);
-        plagiarism_get_form_elements_module($mform, $coursecontext, 'mod_hsuforum');
-
 //-------------------------------------------------------------------------------
 
         $this->standard_grading_coursemodule_elements();