Remove now unnecessary util glob imports

ethcore/src/miner/work_notify.rs

@@ -27,7 +27,6 @@ use hyper::Url;
 use bigint::prelude::U256;
 use bigint::hash::H256;
 use parking_lot::Mutex;
-use util::*;
 use ethereum::ethash::Ethash;
 
 /// Trait for notifying about new mining work

ethcore/src/verification/queue/mod.rs

@@ -26,7 +26,6 @@ use heapsize::HeapSizeOf;
 use bigint::prelude::U256;
 use bigint::hash::H256;
 use parking_lot::{Condvar, Mutex, RwLock};
-use util::*;
 use io::*;
 use error::*;
 use engines::Engine;