test: use URL fixtures under test/fixtures/wpt/url/resources

Removes the following files:

- test/fixtures/url-tests.js
- test/fixtures/url-setter-tests.js
- test/fixtures/url-toascii.js

in favor of:

- test/fixtures/wpt/url/resources/urltestdata.json
- test/fixtures/wpt/url/resources/setters_tests.json
- test/fixtures/wpt/url/resources/toascii.json

Also removes dependency of `fixtures/url-tests.js` in http2 tests
and use `fixtures/person-large.jpg` instead since they are just
looking for a big enough file to transfer.

PR-URL: https://github.com/nodejs/node/pull/24035
Refs: https://github.com/nodejs/node/issues/23192


Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com>