servo: Merge #2350 - Remove an unused import of std::str (from zwarich:unused-str-import); r=metajack

Source-Repo: https://github.com/servo/servo
Source-Revision: e6e253b11d63d96b45aa1e9c7218238c9fc4b6d8

servo/src/test/harness/reftest/reftest.rs

@@ -15,7 +15,6 @@ use std::io;
 use std::io::{File, Reader, Process};
 use std::io::process::ExitStatus;
 use std::os;
-use std::str;
 use test::{DynTestName, DynTestFn, TestDesc, TestOpts, TestDescAndFn};
 use test::run_tests_console;