Remove extern crate (#5922)

* Remove extern crate

beacon_node/client/src/lib.rs

@@ -1,5 +1,3 @@
-extern crate slog;
-
 mod compute_light_client_updates;
 pub mod config;
 mod metrics;

beacon_node/eth1/src/lib.rs

@@ -1,6 +1,3 @@
-#[macro_use]
-extern crate lazy_static;
-
 mod block_cache;
 mod deposit_cache;
 mod inner;

beacon_node/eth1/src/metrics.rs

@@ -1,5 +1,7 @@
 pub use lighthouse_metrics::*;
 
+use lazy_static::lazy_static;
+
 lazy_static! {
     /*
      * Eth1 blocks

beacon_node/execution_layer/src/versioned_hashes.rs

@@ -1,5 +1,3 @@
-extern crate alloy_consensus;
-extern crate alloy_rlp;
 use alloy_consensus::TxEnvelope;
 use alloy_rlp::Decodable;
 use types::{EthSpec, ExecutionPayloadRef, Hash256, Unsigned, VersionedHash};

beacon_node/lighthouse_network/src/lib.rs

@@ -2,9 +2,6 @@
 /// all required libp2p functionality.
 ///
 /// This crate builds and manages the libp2p services required by the beacon node.
-#[macro_use]
-extern crate lazy_static;
-
 mod config;
 pub mod service;
 

beacon_node/lighthouse_network/src/metrics.rs

@@ -1,5 +1,7 @@
 pub use lighthouse_metrics::*;
 
+use lazy_static::lazy_static;
+
 lazy_static! {
     pub static ref NAT_OPEN: Result<IntGaugeVec> = try_create_int_gauge_vec(
         "nat_open",

beacon_node/lighthouse_network/src/peer_manager/peerdb/score.rs

@@ -6,6 +6,7 @@
 //!
 //! The scoring algorithms are currently experimental.
 use crate::service::gossipsub_scoring_parameters::GREYLIST_THRESHOLD as GOSSIPSUB_GREYLIST_THRESHOLD;
+use lazy_static::lazy_static;
 use serde::Serialize;
 use std::time::Instant;
 use strum::AsRefStr;

beacon_node/lighthouse_network/src/rpc/protocol.rs

@@ -3,6 +3,7 @@ use crate::rpc::codec::{base::BaseInboundCodec, ssz_snappy::SSZSnappyInboundCode
 use futures::future::BoxFuture;
 use futures::prelude::{AsyncRead, AsyncWrite};
 use futures::{FutureExt, StreamExt};
+use lazy_static::lazy_static;
 use libp2p::core::{InboundUpgrade, UpgradeInfo};
 use ssz::Encode;
 use ssz_types::VariableList;

beacon_node/network/src/lib.rs

@@ -1,6 +1,3 @@
-#[macro_use]
-extern crate lazy_static;
-
 /// This crate provides the network server for Lighthouse.
 pub mod error;
 #[allow(clippy::mutable_key_type)] // PeerId in hashmaps are no longer permitted by clippy

beacon_node/network/src/metrics.rs

@@ -5,6 +5,7 @@ use beacon_chain::{
     sync_committee_verification::Error as SyncCommitteeError,
 };
 use fnv::FnvHashMap;
+use lazy_static::lazy_static;
 pub use lighthouse_metrics::*;
 use lighthouse_network::{
     peer_manager::peerdb::client::ClientKind, types::GossipKind, GossipTopic, Gossipsub,

beacon_node/src/lib.rs

@@ -1,5 +1,3 @@
-extern crate clap;
-
 mod cli;
 mod config;
 

beacon_node/store/src/lib.rs

@@ -7,9 +7,6 @@
 //!
 //! Provides a simple API for storing/retrieving all types that sometimes needs type-hints. See
 //! tests for implementation examples.
-#[macro_use]
-extern crate lazy_static;
-
 mod chunk_writer;
 pub mod chunked_iter;
 pub mod chunked_vector;

beacon_node/store/src/metrics.rs

@@ -1,6 +1,7 @@
 pub use lighthouse_metrics::{set_gauge, try_create_int_gauge, *};
 
 use directory::size_of_dir;
+use lazy_static::lazy_static;
 use std::path::Path;
 
 lazy_static! {