doc,lib: remove deprecated domain module

[bnoordhuis]

Fixes: https://github.com/nodejs/node/issues/45824

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Draft PR to check citgm. The REPL was leaning quite heavily on domains so REPL tests are expected to fail. I didn't want to spend time on that for a trial balloon.

I deleted lib/domain.js for now but in the final version it should probably throw an exception (not emit a warning.)

https://ci.nodejs.org/view/Node.js-citgm/job/citgm-smoker/3060/