dissolve util (#7460)

* ethereum-types refactor in progress

* ethereum-types refactor in progress

* ethereum-types refactor in progress

* ethereum-types refactor in progress

* ethereum-types refactor finished

* removed obsolete util/src/lib.rs

* removed commented out code

ethcore/light/src/net/mod.rs

@@ -23,9 +23,8 @@ use ethcore::transaction::UnverifiedTransaction;
 use io::TimerToken;
 use network::{HostInfo, NetworkProtocolHandler, NetworkContext, PeerId};
 use rlp::{RlpStream, UntrustedRlp};
-use bigint::prelude::U256;
-use bigint::hash::H256;
-use util::DBValue;
+use ethereum_types::{H256, U256};
+use kvdb::DBValue;
 use parking_lot::{Mutex, RwLock};
 use time::{Duration, SteadyTime};
 

ethcore/light/src/net/request_credits.rs

@@ -30,7 +30,7 @@ use request::{self, Request};
 use super::error::Error;
 
 use rlp::*;
-use bigint::prelude::U256;
+use ethereum_types::U256;
 use time::{Duration, SteadyTime};
 
 /// Credits value.

ethcore/light/src/net/request_set.rs

@@ -27,7 +27,7 @@ use std::iter::FromIterator;
 use request::Request;
 use request::NetworkRequests as Requests;
 use net::{timeout, ReqId};
-use bigint::prelude::U256;
+use ethereum_types::U256;
 
 use time::{Duration, SteadyTime};
 

ethcore/light/src/net/status.rs

@@ -17,8 +17,7 @@
 //! Peer status and capabilities.
 
 use rlp::{DecoderError, Encodable, Decodable, RlpStream, UntrustedRlp};
-use bigint::prelude::U256;
-use bigint::hash::H256;
+use ethereum_types::{H256, U256};
 
 use super::request_credits::FlowParams;
 
@@ -374,8 +373,7 @@ pub fn write_announcement(announcement: &Announcement) -> Vec<u8> {
 mod tests {
 	use super::*;
 	use super::super::request_credits::FlowParams;
-	use bigint::prelude::U256;
-	use bigint::hash::H256;
+	use ethereum_types::{U256, H256};
 	use rlp::{RlpStream, UntrustedRlp};
 
 	#[test]

ethcore/light/src/net/tests/mod.rs

@@ -32,9 +32,7 @@ use request;
 use request::*;
 
 use rlp::*;
-use bigint::prelude::U256;
-use bigint::hash::H256;
-use util::Address;
+use ethereum_types::{H256, U256, Address};
 
 use std::sync::Arc;