diff --git a/mod/workshop/lib.php b/mod/workshop/lib.php
index 273675b57cd..29df113505c 100644
--- a/mod/workshop/lib.php
+++ b/mod/workshop/lib.php
@@ -1786,18 +1786,6 @@ function workshop_calendar_update(stdClass $workshop, $cmid) {
     }
 }
 
-/**
- * Is the event visible?
- *
- * @param \core_calendar\event $event
- * @return bool Returns true if the event is visible to the current user, false otherwise.
- */
-function mod_workshop_core_calendar_is_event_visible(\core_calendar\event $event) {
-    $cm = get_fast_modinfo($event->courseid)->instances['workshop'][$event->instance];
-    $context = context_module::instance($cm->id);
-    return has_capability('mod/workshop:view', $context);
-}
-
 /**
  * Handles creating actions for events.
  *
diff --git a/mod/workshop/tests/lib_test.php b/mod/workshop/tests/lib_test.php
index ddb7eb4933a..9d75a755248 100644
--- a/mod/workshop/tests/lib_test.php
+++ b/mod/workshop/tests/lib_test.php
@@ -31,43 +31,7 @@ require_once($CFG->dirroot . '/mod/workshop/lib.php');
  * @copyright  2017 Simey Lameze <simey@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
-class mod_workshop_lib_testcase extends advanced_testcase
-{
-
-    /**
-     * Test calendar event visibility.
-     */
-    public function test_workshop_core_calendar_is_event_visible()
-    {
-        $this->resetAfterTest();
-        $this->setAdminUser();
-
-        $course = $this->getDataGenerator()->create_course();
-        $workshop = $this->getDataGenerator()->create_module('workshop', ['course' => $course->id]);
-        $event = $this->create_action_event($course->id, $workshop->id, WORKSHOP_EVENT_TYPE_SUBMISSION_OPEN);
-
-        $this->assertTrue(mod_workshop_core_calendar_is_event_visible($event));
-    }
-
-    /**
-     * Test calendar event visibility to a non-user.
-     */
-    public function test_workshop_core_calendar_is_event_visible_as_non_user()
-    {
-        global $CFG;
-        $this->resetAfterTest();
-        $this->setAdminUser();
-
-        $course = $this->getDataGenerator()->create_course();
-        $workshop = $this->getDataGenerator()->create_module('workshop', array('course' => $course->id));
-        $event = $this->create_action_event($course->id, $workshop->id, WORKSHOP_EVENT_TYPE_SUBMISSION_OPEN);
-
-        // Log out the user and set force login to true.
-        \core\session\manager::init_empty_session();
-        $CFG->forcelogin = true;
-
-        $this->assertFalse(mod_workshop_core_calendar_is_event_visible($event));
-    }
+class mod_workshop_lib_testcase extends advanced_testcase {
 
     /**
      * Test calendar event provide action open.