Boost: Remove very heavy useless call in user_portal: the get_personnal_courses_list() was called twice without reason

user_portal.php

@@ -45,9 +45,6 @@ api_block_anonymous_users(); // Only users who are logged in can proceed.
 //$load_dirs = api_get_setting('courses_list_document_dynamic_dropdown');
 $load_dirs = true;
 
-// This is the main function to get the course list.
-$personal_course_list = UserManager::get_personal_session_course_list(api_get_user_id());
-
 // Check if a user is enrolled only in one course for going directly to the course after the login.
 if (api_get_setting('go_to_course_after_login') == 'true') {
     $my_session_list = array();