Remove all leftover usage of _stream_* and keep all of them as legacy.
We do not deprecate the old modules to avoid disrupition and ease
maintainance.
PR-URL: https://github.com/nodejs/node/pull/36684
Reviewed-By: Robert Nagy <ronagy@icloud.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Rich Trott <rtrott@gmail.com>
