removed obsolete documentation about requiring classes
removed obsolete documentation about requiring classes

gamernetwork/Twig,twigphp/Twig,gencer/Twig,apishka/templater,gencer/Twig,nicolas-grekas/Twig,nicolas-grekas/Twig,gamernetwork/Twig,dkarvounaris/Twig,hhamon/Twig,twigphp/Twig,nicolas-grekas/Twig,twigphp/Twig,derickr/Twig,derickr/Twig,craue/Twig,hhamon/Twig,craue/Twig,dkarvounaris/Twig,nicolas-grekas/Twig,gamernetwork/Twig,hhamon/Twig,dkarvounaris/Twig,derickr/Twig,nicolas-grekas/Twig,apishka/templater