remove or move unused imports

node/libs/crypto/src/bls12_381/tests.rs

@@ -1,9 +1,6 @@
 use super::*;
 use rand::{rngs::StdRng, Rng, SeedableRng};
 use std::iter::repeat_with;
-use std::ops::Deref;
-use anyhow::__private::kind::TraitKind;
-use thiserror::__private::AsDynError;
 
 // Test signing and verifying a random message
 #[test]

node/libs/crypto/src/bn254/mod.rs

@@ -154,7 +154,7 @@ impl Signature {
     ///
     /// This function is intentionally non-generic and disallow inlining to ensure that compilation optimizations can be effectively applied.
     /// This optimization is needed for ensuring that tests can run within a reasonable time frame.
-    /// 
+    ///
     /// Subgroup checks for signatures are unnecessary when using the G1 group because it has a cofactor of 1,
     /// ensuring all signatures are in the correct subgroup.
     /// Ref: https://hackmd.io/@jpw/bn254#Subgroup-check-for-mathbb-G_1.

node/libs/crypto/src/ed25519/tests.rs

@@ -1,9 +1,8 @@
-use ed25519_dalek::{
-    Signature, Signer, SigningKey, VerifyingKey, PUBLIC_KEY_LENGTH, SECRET_KEY_LENGTH,
-};
-use hex::FromHex;
 #[test]
 fn test_ed25519() -> Result<(), Box<dyn std::error::Error>> {
+    use ed25519_dalek::{
+        Signature, Signer, SigningKey, VerifyingKey, PUBLIC_KEY_LENGTH, SECRET_KEY_LENGTH,
+    };
     // Test vectors obtained from https://github.com/dalek-cryptography/ed25519-dalek/blob/main/TESTVECTORS.
     let test_vectors: Vec<(Vec<u8>, Vec<u8>, Vec<u8>, Vec<u8>)> = vec![
         (