remove unused 'require_once __DIR__ . '/SplAutoloader.php';'
Merge branch 'hotfix/4243'

Close #4243
Merge pull request #4244 from samsonasik/fix/rem.unused.require

remove unused 'require_once __DIR__ . '/SplAutoloader.php';'
Merge branch 'hotfix/4244' into develop

Forward port #4244