chore: use secp fns directly (#13675)

crates/primitives/src/transaction/mod.rs

@@ -1497,7 +1497,7 @@ impl<'a> arbitrary::Arbitrary<'a> for TransactionSigned {
 
         let secp = secp256k1::Secp256k1::new();
         let key_pair = secp256k1::Keypair::new(&secp, &mut rand::thread_rng());
-        let signature = crate::sign_message(
+        let signature = reth_primitives_traits::crypto::secp256k1::sign_message(
             B256::from_slice(&key_pair.secret_bytes()[..]),
             transaction.signature_hash(),
         )