Remove serde derive references (#4830)

* remove remaining uses of serde_derive

* fix lockfile

---------

Co-authored-by: João Oliveira <hello@jxs.pt>

crypto/bls/Cargo.toml

@@ -10,7 +10,6 @@ tree_hash = { workspace = true }
 milagro_bls = { git = "https://github.com/sigp/milagro_bls", tag = "v1.5.1", optional = true }
 rand = { workspace = true }
 serde = { workspace = true }
-serde_derive = "1.0.116"
 ethereum_serde_utils = { workspace = true }
 hex = { workspace = true }
 ethereum_hashing = { workspace = true }

crypto/bls/src/zeroize_hash.rs

@@ -1,5 +1,5 @@
 use super::SECRET_KEY_BYTES_LEN;
-use serde_derive::{Deserialize, Serialize};
+use serde::{Deserialize, Serialize};
 use zeroize::Zeroize;
 
 /// Provides a wrapper around a `[u8; SECRET_KEY_BYTES_LEN]` that implements `Zeroize` on `Drop`.

crypto/kzg/src/lib.rs

@@ -2,7 +2,7 @@ mod kzg_commitment;
 mod kzg_proof;
 mod trusted_setup;
 
-use serde_derive::{Deserialize, Serialize};
+use serde::{Deserialize, Serialize};
 use std::fmt::Debug;
 use std::ops::Deref;
 use std::str::FromStr;