std: Remove #[allow] directives in sys modules

These were suppressing lots of interesting warnings! Turns out there was also
quite a bit of dead code.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/libstd/sys/windows/tcp.rs b/src/libstd/sys/windows/tcp.rs
index 8547de145f8..6e46bf97d1b 100644
--- a/src/libstd/sys/windows/tcp.rs
+++ b/src/libstd/sys/windows/tcp.rs
@@ -10,12 +10,13 @@
 
 #![allow(deprecated)]
 
+use prelude::v1::*;
+
 use old_io::net::ip;
 use old_io::IoResult;
 use libc;
 use mem;
 use ptr;
-use prelude::v1::*;
 use super::{last_error, last_net_error, sock_t};
 use sync::Arc;
 use sync::atomic::{AtomicBool, Ordering};