Rust guide cargo installation instructions now redundant

[tragiclifestories]

With the merging of PR 46 #46, rustup takes care of installing Cargo, so the first part of section 0.4 of the new guide is now a bit redundant. Sorry if this is the wrong place to raise the issue, couldn't find a repo specifically for the guide or doc.rust-lang.org...

[adrientetar]

Are you referring to rust-lang/rust#15693?

BTW the guide is developed in the rust repo, not rust-www.

[tragiclifestories]

Ah, right. I spent about 15 minutes trying to find it, obviously I failed. Closed!

[steveklabnik]

Also, while you submitted this post, I had a patch fixing the issue waiting in the queue :) Thanks for reporting though!