removed additional_params method (#10818)

ethcore/src/client/client.rs

@@ -16,7 +16,6 @@
 
 use std::cmp;
 use std::collections::{HashSet, BTreeMap, VecDeque};
-use std::str::FromStr;
 use std::sync::atomic::{AtomicUsize, AtomicBool, Ordering as AtomicOrdering};
 use std::sync::{Arc, Weak};
 use std::time::{Instant, Duration};
@@ -753,7 +752,7 @@ impl Client {
 
 		let importer = Importer::new(&config, engine.clone(), message_channel.clone(), miner)?;
 
-		let registrar_address = engine.additional_params().get("registrar").and_then(|s| Address::from_str(s).ok());
+		let registrar_address = engine.machine().params().registrar;
 		if let Some(ref addr) = registrar_address {
 			trace!(target: "client", "Found registrar at {}", addr);
 		}
@@ -1982,10 +1981,6 @@ impl BlockChainClient for Client {
 		self.importer.block_queue.clear();
 	}
 
-	fn additional_params(&self) -> BTreeMap<String, String> {
-		self.engine.additional_params().into_iter().collect()
-	}
-
 	fn logs(&self, filter: Filter) -> Result<Vec<LocalizedLogEntry>, BlockId> {
 		let chain = self.chain.read();
 

ethcore/src/client/test_client.rs

@@ -841,10 +841,6 @@ impl BlockChainClient for TestBlockChainClient {
 	fn clear_queue(&self) {
 	}
 
-	fn additional_params(&self) -> BTreeMap<String, String> {
-		Default::default()
-	}
-
 	fn filter_traces(&self, _filter: TraceFilter) -> Option<Vec<LocalizedTrace>> {
 		self.traces.read().clone()
 	}

ethcore/src/client/traits.rs

@@ -296,9 +296,6 @@ pub trait BlockChainClient : Sync + Send + AccountData + BlockChain + CallContra
 	/// Clear block queue and abort all import activity.
 	fn clear_queue(&self);
 
-	/// Get the registrar address, if it exists.
-	fn additional_params(&self) -> BTreeMap<String, String>;
-
 	/// Returns logs matching given filter. If one of the filtering block cannot be found, returns the block id that caused the error.
 	fn logs(&self, filter: Filter) -> Result<Vec<LocalizedLogEntry>, BlockId>;