Remove unused derive.

Author: jimmygchen

consensus/types/src/beacon_block_body.rs

@@ -54,12 +54,11 @@ pub const BLOB_KZG_COMMITMENTS_INDEX: usize = 11;
     cast_error(ty = "Error", expr = "Error::IncorrectStateVariant"),
     partial_getter_error(ty = "Error", expr = "Error::IncorrectStateVariant")
 )]
-#[derive(Debug, Clone, Serialize, Deserialize, Derivative, TreeHash, arbitrary::Arbitrary)]
+#[derive(Debug, Clone, Serialize, Deserialize, Derivative, arbitrary::Arbitrary)]
 #[derivative(PartialEq, Hash(bound = "T: EthSpec"))]
 #[serde(untagged)]
 #[serde(bound = "T: EthSpec, Payload: AbstractExecPayload<T>")]
 #[arbitrary(bound = "T: EthSpec, Payload: AbstractExecPayload<T>")]
-#[tree_hash(enum_behaviour = "transparent")]
 pub struct BeaconBlockBody<T: EthSpec, Payload: AbstractExecPayload<T> = FullPayload<T>> {
     pub randao_reveal: Signature,
     pub eth1_data: Eth1Data,

consensus/types/src/beacon_block_header.rs

@@ -13,7 +13,6 @@ use tree_hash_derive::TreeHash;
 #[derive(
     arbitrary::Arbitrary,
     Debug,
-    Default,
     PartialEq,
     Eq,
     Hash,