Correctif get_form_newsletter()

ShopBundle/Twig/BridgeTwigExtension.php

                         new TwigFunction('getUnitsList', [$this, 'getUnitsList']),
                         new TwigFunction('getTaxRatesList', [$this, 'getTaxRatesList']),
                         new TwigFunction('getElementByDevAlias', [$this, 'getElementByDevAlias']),
-                        new TwigFunction('get_form_newsletter', [$this, 'getFormNewsletter']),
                 );
         }