Minor - format code , remove unused code

Author: jmontoyaa

main/group/member_settings.php

@@ -113,8 +113,6 @@ function check_group_members($value)
     return true;
 }
 
-/*	MAIN CODE */
-
 $htmlHeadXtra[] = '<script>
 $(document).ready( function() {
     $("#max_member").on("focus", function() {
@@ -128,7 +126,6 @@ function check_group_members($value)
 $form->addElement('hidden', 'action');
 $form->addElement('hidden', 'max_student', $current_group['max_student']);
 $complete_user_list = GroupManager::fill_groups_list($current_group['iid']);
-
 $subscribedTutors = GroupManager::getTutors($current_group['iid']);
 if ($subscribedTutors) {
     $subscribedTutors = array_column($subscribedTutors, 'user_id');

main/inc/lib/groupmanager.lib.php

@@ -2080,36 +2080,12 @@ public static function fill_groups_list($groupId)
             $categoryId = $category['id'];
         }
 
-        $group_table = Database::get_course_table(TABLE_GROUP);
-        $group_user_table = Database::get_course_table(TABLE_GROUP_USER);
         $session_id = api_get_session_id();
-        $complete_user_list = CourseManager::get_real_and_linked_user_list($_course['code'], true, $session_id);
-        $course_id = api_get_course_int_id();
-
-        /*
-         * Retrieve all the groups where enrollment is still allowed
-         * (reverse) ordered by the number of place available
-         */
-        $sql = "SELECT g.id gid, count(ug.user_id) count_users, g.max_student
-                FROM $group_table g
-                LEFT JOIN $group_user_table ug
-                ON g.iid = ug.group_id
-                WHERE   
-                    g.c_id = $course_id AND
-                    ug.c_id = $course_id AND
-                    g.iid = $groupId
-                GROUP BY (g.iid)";
-
-        $sql_result = Database::query($sql);
-        $group_available_place = array();
-        while ($group = Database::fetch_array($sql_result, 'ASSOC')) {
-            if (!empty($group['max_student'])) {
-                $places = intval($group['max_student'] - $group['count_users']);
-            } else {
-                $places = self::MEMBER_PER_GROUP_NO_LIMIT;
-            }
-            $group_available_place[$group['gid']] = $places;
-        }
+        $complete_user_list = CourseManager::get_real_and_linked_user_list(
+            $_course['code'],
+            true,
+            $session_id
+        );
 
         /*
          * Retrieve course users (reverse) ordered by the number