allow dead code temporarily

ethcore/light/src/lib.rs

@@ -28,6 +28,9 @@
 //! It starts by performing a header-only sync, verifying random samples
 //! of members of the chain to varying degrees.
 
+// TODO: remove when integrating with parity.
+#![allow(dead_code)]
+
 pub mod client;
 pub mod net;
 pub mod provider;

ethcore/light/src/net/buffer_flow.rs

@@ -233,7 +233,6 @@ impl FlowParams {
 #[cfg(test)]
 mod tests {
 	use super::*;
-	use util::U256;
 
 	#[test]
 	fn should_serialize_cost_table() {