In rust-url 1.0 the `Url` struct is going to have private fields, and there is no way to to create an aribitrary one without going through the parser.
The plugin never had a clear demonstrated performance benefit, it was made mostly because it was possible and relatively easy at the time.
This commit was originally part of #9840, but it’s taking a while to land and I keep removing new uses of `url!` when rebasing.
r? @nox
Source-Repo: https://github.com/servo/servo
Source-Revision: 3368565b3c6c76e5ce2d170d5c5cfb2f52a56956