wip: form refactoring

src/Form/Model/BookingCreateDto.php

@@ -40,11 +40,6 @@ class BookingCreateDto implements BookingDtoInterface
         return $this->participants;
     }
 
-    public function getTravel(): Travel
-    {
-        return $this->travel;
-    }
-
     public function hasParticipant(int $index): bool
     {
         return isset($this->participants[$index]);