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/src/tests/client.rs

@@ -25,8 +25,7 @@ use ethereum;
 use block::IsBlock;
 use tests::helpers::*;
 use types::filter::Filter;
-use bigint::prelude::U256;
-use util::*;
+use ethereum_types::{U256, Address};
 use kvdb_rocksdb::{Database, DatabaseConfig};
 use devtools::*;
 use miner::Miner;

ethcore/src/tests/evm.rs

@@ -12,8 +12,7 @@ use transaction::SYSTEM_ADDRESS;
 
 use rustc_hex::FromHex;
 
-use bigint::hash::H256;
-use util::*;
+use ethereum_types::{H256, Address};
 use bytes::BytesRef;
 
 evm_test!{test_blockhash_eip210: test_blockhash_eip210_jit, test_blockhash_eip210_int}

ethcore/src/tests/helpers.rs

@@ -15,8 +15,7 @@
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
 use account_provider::AccountProvider;
-use bigint::hash::H256;
-use bigint::prelude::U256;
+use ethereum_types::{H256, U256};
 use block::{OpenBlock, Drain};
 use blockchain::{BlockChain, Config as BlockChainConfig};
 use bytes::Bytes;

ethcore/src/tests/trace.rs

@@ -19,8 +19,7 @@
 use ethkey::KeyPair;
 use hash::keccak;
 use block::*;
-use bigint::prelude::U256;
-use util::*;
+use ethereum_types::{U256, Address};
 use io::*;
 use spec::*;
 use client::*;