I do not recall anyone reporting that it worked better than the Qt
implementation for them, and the lack of recent wheels on PyPI is a pain.
We can always add it back in the future if enough people come out of
the woodwork to report they were using it.
The enum changes should work on PyQt 5.x, and are required in PyQt 6.x.
They are not supported by the PyQt5 typings however, so we need to run
our tests with PyQt6.
