[Reference][Constraints] Remove invalid default option markers; fix messages

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | -
| Applies to    | 2.2+
| Fixed tickets | -

For some constraints there was one or more default option indicated which is not a default option according to the Symfony code.

In addition, I fixed the constraint messages, some were missing the dot at the end while some had it twice. `suffix` was missing in the File constraint messages.