Fixed bug nelmio#2287

Author: heminei

src/ModelDescriber/Annotations/SymfonyConstraintAnnotationReader.php

@@ -82,10 +82,6 @@ private function processPropertyAnnotations($reflection, OA\Property $property,
                     return;
                 }
 
-                if (!Generator::isDefault($property->default)) {
-                    return;
-                }
-
                 $existingRequiredFields = Generator::UNDEFINED !== $this->schema->required ? $this->schema->required : [];
                 $existingRequiredFields[] = $propertyName;