Remove extern crate (#5922)

* Remove extern crate

consensus/types/src/beacon_state/committee_cache/tests.rs

@@ -2,6 +2,7 @@
 use crate::test_utils::*;
 use beacon_chain::test_utils::{BeaconChainHarness, EphemeralHarnessType};
 use beacon_chain::types::*;
+use lazy_static::lazy_static;
 use swap_or_not_shuffle::shuffle_list;
 
 pub const VALIDATOR_COUNT: usize = 16;

consensus/types/src/beacon_state/tests.rs

@@ -6,6 +6,7 @@ use beacon_chain::types::{
     ChainSpec, Domain, Epoch, EthSpec, Hash256, Keypair, MainnetEthSpec, MinimalEthSpec,
     RelativeEpoch, Slot, Vector,
 };
+use lazy_static::lazy_static;
 use ssz::Encode;
 use std::ops::Mul;
 use swap_or_not_shuffle::compute_shuffled_index;

consensus/types/src/lib.rs

@@ -9,8 +9,6 @@
     )
 )]
 
-#[macro_use]
-extern crate lazy_static;
 #[macro_use]
 pub mod test_utils;
 

consensus/types/src/subnet_id.rs

@@ -1,5 +1,6 @@
 //! Identifies each shard by an integer identifier.
 use crate::{AttestationData, ChainSpec, CommitteeIndex, Epoch, EthSpec, Slot};
+use lazy_static::lazy_static;
 use safe_arith::{ArithError, SafeArith};
 use serde::{Deserialize, Serialize};
 use std::ops::{Deref, DerefMut};

consensus/types/src/sync_subnet_id.rs

@@ -1,6 +1,7 @@
 //! Identifies each sync committee subnet by an integer identifier.
 use crate::consts::altair::SYNC_COMMITTEE_SUBNET_COUNT;
 use crate::EthSpec;
+use lazy_static::lazy_static;
 use safe_arith::{ArithError, SafeArith};
 use serde::{Deserialize, Serialize};
 use ssz_types::typenum::Unsigned;