Remove some warnings

src/service/btc.rs

@@ -9,7 +9,6 @@ use bitcoin::util::address::Address;
 
 use bitcoin::network::constants::Network;
 
-use bitcoin::hash_types::PubkeyHash;
 
 // Swap out these types for any future non bitcoin-rs types
 pub type PubAddress = Address;

src/service/cashier.rs

@@ -2,9 +2,9 @@ use super::reqrep::{PeerId, RepProtocol, Reply, ReqProtocol, Request};
 
 use super::btc::{BitcoinKeys, PubAddress};
 
-use crate::{serial::deserialize, serial::serialize, Error, Result};
-use crate::serial::{Decodable, Encodable};
-use crate::wallet::{CashierDb, CashierDbPtr};
+use crate::{Error, Result};
+use crate::serial::{Decodable, Encodable, deserialize, serialize};
+use crate::wallet::CashierDbPtr;
 use crate::tx;
 use crate::crypto::load_params;
 
@@ -120,7 +120,7 @@ impl CashierService {
     }
     async fn handle_request(
         msg: (PeerId, Request),
-        cashier_wallet: CashierDbPtr,
+        _cashier_wallet: CashierDbPtr,
         send_queue: async_channel::Sender<(PeerId, Reply)>,
     ) -> Result<()> {
         let request = msg.1;
@@ -128,7 +128,7 @@ impl CashierService {
         match request.get_command() {
             0 => {
                 // Exchange zk_pubkey for bitcoin address
-                let zkpub = request.get_payload();
+                let _zkpub = request.get_payload();
 
                 // Generate bitcoin Address
                 let btc_keys = BitcoinKeys::new().unwrap();

src/wallet/cashierdb.rs

@@ -2,9 +2,7 @@ use crate::serial;
 use crate::serial::{deserialize, serialize, Decodable, Encodable};
 use crate::util::join_config_path;
 use crate::{Error, Result};
-use crate::service::btc::{PrivKey, PubKey, PubAddress};
-
-use secp256k1::key::SecretKey;
+use crate::service::btc::{PrivKey, PubKey};
 
 use async_std::sync::Arc;
 use ff::Field;