Fix warnings: unused

rpc/src/v1/helpers/engine_signer.rs

@@ -44,7 +44,7 @@ impl ethcore::engines::EngineSigner for EngineSigner {
             .sign(self.address, Some(self.password.clone()), message)
         {
             Ok(ok) => Ok(ok),
-            Err(e) => Err(ethkey::Error::InvalidSecret),
+            Err(_e) => Err(ethkey::Error::InvalidSecret),
         }
     }
 

rpc/src/v1/types/derivation.rs

@@ -21,7 +21,6 @@ use serde::{
 use std::fmt;
 
 use ethereum_types::H256;
-use ethstore;
 
 /// Type of derivation
 pub enum DerivationType {
@@ -32,6 +31,7 @@ pub enum DerivationType {
 }
 
 /// Derivation request by hash
+#[allow(dead_code)]
 #[derive(Deserialize)]
 pub struct DeriveHash {
     hash: H256,
@@ -40,6 +40,7 @@ pub struct DeriveHash {
 }
 
 /// Node propertoes in hierarchical derivation request
+#[allow(dead_code)]
 #[derive(Deserialize)]
 pub struct DeriveHierarchicalItem {
     index: u64,