get spec tests working and fix json serialization

consensus/state_processing/src/per_block_processing.rs

@@ -19,7 +19,6 @@ pub use process_operations::process_operations;
 pub use verify_attestation::{
     verify_attestation_for_block_inclusion, verify_attestation_for_state,
 };
-#[cfg(all(feature = "withdrawals", feature = "withdrawals-processing"))]
 pub use verify_bls_to_execution_change::verify_bls_to_execution_change;
 pub use verify_deposit::{
     get_existing_validator_index, verify_deposit_merkle_proof, verify_deposit_signature,
@@ -36,13 +35,11 @@ pub mod signature_sets;
 pub mod tests;
 mod verify_attestation;
 mod verify_attester_slashing;
-#[cfg(all(feature = "withdrawals", feature = "withdrawals-processing"))]
 mod verify_bls_to_execution_change;
 mod verify_deposit;
 mod verify_exit;
 mod verify_proposer_slashing;
 
-#[cfg(feature = "withdrawals-processing")]
 use crate::common::decrease_balance;
 
 #[cfg(feature = "arbitrary-fuzz")]
@@ -523,7 +520,6 @@ pub fn get_expected_withdrawals<T: EthSpec>(
 }
 
 /// FIXME: add link to this function once the spec is stable
-#[cfg(all(feature = "withdrawals", feature = "withdrawals-processing"))]
 pub fn process_withdrawals<'payload, T: EthSpec, Payload: AbstractExecPayload<T>>(
     state: &mut BeaconState<T>,
     payload: Payload::Ref<'payload>,

consensus/state_processing/src/per_block_processing/process_operations.rs

@@ -289,7 +289,6 @@ pub fn process_exits<T: EthSpec>(
 ///
 /// Returns `Ok(())` if the validation and state updates completed successfully. Otherwise returs
 /// an `Err` describing the invalid object or cause of failure.
-#[cfg(all(feature = "withdrawals", feature = "withdrawals-processing"))]
 pub fn process_bls_to_execution_changes<T: EthSpec>(
     state: &mut BeaconState<T>,
     bls_to_execution_changes: &[SignedBlsToExecutionChange],