remove re-export of parking_lot in util (#6435)

ethcore/light/src/client/header_chain.rs

@@ -37,11 +37,11 @@ use ethcore::ids::BlockId;
 
 use rlp::{Encodable, Decodable, DecoderError, RlpStream, Rlp, UntrustedRlp};
 use heapsize::HeapSizeOf;
-use util::{H256, U256, RwLock};
+use util::{H256, U256};
 use util::kvdb::{DBTransaction, KeyValueDB};
 
 use cache::Cache;
-use util::Mutex;
+use parking_lot::{Mutex, RwLock};
 
 use smallvec::SmallVec;
 
@@ -555,7 +555,7 @@ mod tests {
   	use cache::Cache;
 
 	use time::Duration;
-	use util::Mutex;
+	use parking_lot::Mutex;
 
 	fn make_db() -> Arc<::util::KeyValueDB> {
 		Arc::new(::util::kvdb::in_memory(0))

ethcore/light/src/client/mod.rs

@@ -30,8 +30,9 @@ use ethcore::spec::Spec;
 use ethcore::service::ClientIoMessage;
 use ethcore::encoded;
 use io::IoChannel;
+use parking_lot::{Mutex, RwLock};
 
-use util::{H256, U256, Mutex, RwLock};
+use util::{H256, U256};
 use util::kvdb::{KeyValueDB, CompactionProfile};
 
 use self::header_chain::{AncestryIter, HeaderChain};

ethcore/light/src/client/service.rs

@@ -28,7 +28,7 @@ use io::{IoContext, IoError, IoHandler, IoService};
 use util::kvdb::{Database, DatabaseConfig};
 
 use cache::Cache;
-use util::Mutex;
+use parking_lot::Mutex;
 
 use super::{Client, Config as ClientConfig};
 
@@ -117,11 +117,11 @@ mod tests {
 	use super::Service;
 	use devtools::RandomTempPath;
 	use ethcore::spec::Spec;
-	
+
 	use std::sync::Arc;
 	use cache::Cache;
 	use time::Duration;
-	use util::Mutex;
+	use parking_lot::Mutex;
 
 	#[test]
 	fn it_works() {