test: remove duplicate tests

`test/parallel/test-dns-default-verbatim-false.js` is a duplicate of
`test/parallel/test-dns-default-order-ipv4.js` and
`test/parallel/test-dns-default-verbatim-true.js` is a duplicate of
`test/parallel/test-dns-default-order-verbatim.js`.

PR-URL: #55393
Reviewed-By: Yagiz Nizipli <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: Marco Ippolito <[email protected]>
Reviewed-By: Jake Yuesong Li <[email protected]>

Author: lpinca