Update router-route.md

Although with the comment into `.all(function (req, res, next)` is clear that it is a middleware and `next` must be called, in other examples always appear the `next` call, so I think that it is more consistent with the rest of the docs.
Removed non necessary console.log

As commented, I've removed the `console.log` because it's not necessary and with the required `next()` is enough
Merge pull request #290 from ifraixedes/patch-1

Update router-route.md