Revert "build,test: make building addon tests less fragile"

This reverts commit d9b59def.

Breaks downloadable source tarball builds as we remove some files prior
to creating a tarball but those files are included in the comprehensive
list of dependencies listed in .deps.

Ref: https://github.com/nodejs/node/pull/17407
PR-URL: https://github.com/nodejs/node/pull/18287


Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>