From fe94078e004223d74f06fcf2f4a02bd2b2ee3835 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Aur=C3=A9lien?= <3535019+leruaa@users.noreply.github.com>
Date: Thu, 4 Jul 2024 23:09:16 +0200
Subject: [PATCH] fix: no_std build (#9313)

---
 crates/chainspec/src/spec.rs | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/crates/chainspec/src/spec.rs b/crates/chainspec/src/spec.rs
index 33ca2f4f02..5de303814c 100644
--- a/crates/chainspec/src/spec.rs
+++ b/crates/chainspec/src/spec.rs
@@ -1,12 +1,6 @@
 use crate::constants::MAINNET_DEPOSIT_CONTRACT;
 #[cfg(not(feature = "std"))]
-use alloc::{
-    collections::BTreeMap,
-    format,
-    string::{String, ToString},
-    sync::Arc,
-    vec::Vec,
-};
+use alloc::{boxed::Box, sync::Arc, vec::Vec};
 use alloy_chains::{Chain, ChainKind, NamedChain};
 use alloy_genesis::Genesis;
 use alloy_primitives::{address, b256, Address, BlockNumber, B256, U256};
@@ -293,7 +287,7 @@ impl From<ForkBaseFeeParams> for BaseFeeParamsKind {
 #[derive(Clone, Debug, PartialEq, Eq, From)]
 pub struct ForkBaseFeeParams(Vec<(Box<dyn Hardfork>, BaseFeeParams)>);
 
-impl std::ops::Deref for ChainSpec {
+impl core::ops::Deref for ChainSpec {
     type Target = ChainHardforks;
 
     fn deref(&self) -> &Self::Target {