build: no longer have v8-debug.h as dependency.

Ref: https://github.com/nodejs/node/issues/18643

PR-URL: https://github.com/nodejs/node/pull/18677
Refs: https://github.com/nodejs/node/issues/18643


Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>