removed util::common

util/network/src/tests.rs

@@ -16,9 +16,10 @@
 
 use super::*;
 use std::sync::atomic::{AtomicBool, Ordering as AtomicOrdering};
+use std::sync::Arc;
 use std::thread;
 use std::time::*;
-use util::common::*;
+use util::{Bytes, Mutex};
 use io::TimerToken;
 use ethkey::{Random, Generator};