Deprecation of punycode internal module

[Jérémy Lal <kapouer@melix.org>]

Hi,

https://nodejs.org/api/deprecations.html#DEP0040

the punycode is deprecated in favor of userland node-punycode.

This concerns a lot of modules:

https://codesearch.debian.net/search?q=require%5C%28%5B%27%22%5Dpunycode&literal=0

I think it would be "efficient" to just throw an error, instead of printing a warning,

since otherwise it will never be fixed in debian.