tools: remove obsolete lint rules

We are about to upgrade from ESlint 1 to ESLint 2. Remove lint rules
that will not exist in ESLint 2.

PR-URL: https://github.com/nodejs/node/pull/5214


Reviewed-By: Michaël Zasso <mic.besace@gmail.com>
Reviewed-By: jbergstroem - Johan Bergström <bugs@bergstroem.nu>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>
Reviewed-By: Myles Borins <myles.borins@gmail.com>