smalloc: remove module
smalloc: remove module

Bye bye, smalloc. I'm not sure why this was still here; it was removed
in 70d1f32 and hasn't worked since. It wasn't packaged in the
binary, either.

Reviewed-By: Michaël Zasso <dc852f7f42c586356f6be32b8780273088b3bded@gmail.com>
Reviewed-By: Sakthipriyan Vairamani <b84950071fc99921a72f4fa56f6cad2496b3223c@gmail.com>
Reviewed-By: Сковорода Никита Андреевич <767c993c25b04139f9abc27a1bb4597f429afab3@gmail.com>
Reviewed-By: Ben Noordhuis <59bd0a3ff43b32849b319e645d4798d8a5d1e889@bnoordhuis.nl>
PR-URL: https://github.com/nodejs/node/pull/3099

dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node