test: remove TODO
test: remove TODO

It's not clear what additional tests are wanted.
The current malformed URL test seems adequate.

PR-URL: https://github.com/nodejs/io.js/pull/1875
Reviewed-By: Colin Ihrig <838f779c91673db29b8572ea3f54d191d3878ae2@gmail.com>
Reviewed-By: Evan Lucas <ad0310dc5270cefb6ee6879263270aed9b1e9982@me.com>

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