chore: Clippy lints

bin/tau/taud/src/util.rs

@@ -47,12 +47,7 @@ pub fn set_event(task_info: &mut TaskInfo, action: &str, author: &str, content:
 }
 
 pub fn pipe_write<P: AsRef<Path>>(path: P) -> Result<File> {
-    OpenOptions::new()
-        .write(true)
-        .append(true)
-        .custom_flags(libc::O_NONBLOCK)
-        .open(path)
-        .map_err(Error::from)
+    OpenOptions::new().append(true).custom_flags(libc::O_NONBLOCK).open(path).map_err(Error::from)
 }
 
 pub fn gen_id(len: usize) -> String {

src/contract/money/src/client/fee_v1.rs

@@ -279,7 +279,7 @@ fn create_fee_proof(
     .to_coin();
 
     let nullifier =
-        NullifierAttributes { secret_key: input.secret, coin: input_coin.clone() }.to_nullifier();
+        NullifierAttributes { secret_key: input.secret, coin: input_coin }.to_nullifier();
 
     let merkle_root = {
         let position: u64 = input.leaf_position.into();

src/contract/money/src/client/stake_v1.rs

@@ -173,8 +173,7 @@ pub fn create_stake_burn_proof(
     }
     .to_coin();
 
-    let nullifier =
-        NullifierAttributes { secret_key: input.secret, coin: coin.clone() }.to_nullifier();
+    let nullifier = NullifierAttributes { secret_key: input.secret, coin }.to_nullifier();
 
     let merkle_root = {
         let position: u64 = input.leaf_position.into();

src/contract/money/src/client/transfer_v1/proof.rs

@@ -17,7 +17,7 @@
  */
 
 use darkfi::{
-    zk::{export_witness_json, halo2::Value, Proof, ProvingKey, Witness, ZkCircuit},
+    zk::{halo2::Value, Proof, ProvingKey, Witness, ZkCircuit},
     zkas::ZkBinary,
     Result,
 };
@@ -103,8 +103,7 @@ pub fn create_transfer_burn_proof(
     }
     .to_coin();
 
-    let nullifier =
-        NullifierAttributes { secret_key: input.secret, coin: coin.clone() }.to_nullifier();
+    let nullifier = NullifierAttributes { secret_key: input.secret, coin }.to_nullifier();
 
     let merkle_root = {
         let position: u64 = input.leaf_position.into();