Remove all use of librustuv

src/libstd/lib.rs

@@ -116,11 +116,6 @@
 
 #![reexport_test_harness_main = "test_main"]
 
-// When testing libstd, bring in libuv as the I/O backend so tests can print
-// things and all of the std::io tests have an I/O interface to run on top
-// of
-#[cfg(test)] extern crate rustuv;
-#[cfg(test)] extern crate native;
 #[cfg(test)] extern crate green;
 #[cfg(test)] extern crate debug;
 #[cfg(test)] #[phase(plugin, link)] extern crate log;
@@ -187,12 +182,6 @@ pub use unicode::char;
 
 pub use core_sync::comm;
 
-// Run tests with libgreen instead of libnative.
-#[cfg(test)] #[start]
-fn start(argc: int, argv: *const *const u8) -> int {
-    green::start(argc, argv, rustuv::event_loop, test_main)
-}
-
 /* Exported macros */
 
 pub mod macros;