doc,lib: remove unused error code

As best as I can tell, ERR_V8BREAKITERATOR is unused anywhere in our
code base and dependencies. Move to legacy errors.

PR-URL: https://github.com/nodejs/node/pull/34792


Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>