[person form] accept sms is not required

src/Bundle/ChillPersonBundle/Form/PersonType.php

@@ -129,8 +129,7 @@ class PersonType extends AbstractType
             $builder
                 ->add('mobilenumber', TelType::class, array('required' => false))
                 ->add('acceptSMS', CheckboxType::class, array(
-                    'value' => false,
-                    'required' => true
+                    'required' => false
                 ));
         }