Disable some lint rules by default

[Atry]

This linter might also be good for the default blacklist - there's an ongoing discussion about removing it entirely at https://fb.workplace.com/groups/hackforhiphop/posts/7429940763721141

In short: It's accurate, but it's highly opinionated, and there's not consensus on the behavior it encourages being a good thing.

This isn't the same as the other codes we'd want to always-ignore, but "pretend it doesn't exist" may be the right thing to do for "may be deleted soon". Perhaps making it off-by-default but explicitly-includable may be better.

Originally posted by @fredemmott in #418 (comment)

[lexidor]

What lint number are you referring to? Non-fb contributors can't access the link you posted.

[fredemmott]

Sorry, 5639 - I edited it into the orignal comment but didn't spot here.