remove unused original TestNet method

sync/src/tests/helpers.rs

@@ -129,24 +129,6 @@ impl TestNet {
 		net
 	}
 
-	pub fn new_with_spec_file<R>(n: usize, reader: R) -> TestNet where R: Read + Clone {
-		let mut net = TestNet {
-			peers: Vec::new(),
-			started: false,
-		};
-		for _ in 0..n {
-			let chain = TestBlockChainClient::new_with_spec(Spec::load(reader.clone()).expect("Invalid spec file."));
-			let sync = ChainSync::new(SyncConfig::default(), &chain);
-			net.peers.push(TestPeer {
-				sync: RwLock::new(sync),
-				snapshot_service: Arc::new(TestSnapshotService::new()),
-				chain: chain,
-				queue: VecDeque::new(),
-			});
-		}
-		net
-	}
-
 	pub fn peer(&self, i: usize) -> &TestPeer {
 		self.peers.get(i).unwrap()
 	}