Remove ethers conversions (mod ethers_compat etc) in reth-primitives

[DaniPopes]

⚠️ Base on #4737 (alloy) ⚠️

Goal: get rid of ethers-core in reth-primitives as much as possible

[tcoratger]

@DaniPopes What do you have in mind here except ethers_compat? I would say that ethers_compat can be removed now and then we wait for #4737 and we open a separate issue for:

• FromHex
• Chain types

that are also related to conversion but can be converted into separate issues to avoid too big changes and confusion, what do you think?

[DaniPopes]

I guess just ethers_compat looking at it, I named this issue before splitting it in the task list in the tracking issue. I don't know what you mean by FromHex, and Chain is tracked in #4741. What related conversion do you mean?

[tcoratger]

I guess just ethers_compat looking at it, I named this issue before splitting it in the task list in the tracking issue. I don't know what you mean by FromHex, and Chain is tracked in #4741. What related conversion do you mean?

@DaniPopes Here:

reth/crates/primitives/src/header.rs

Line 721 in 371388d

use ethers_core::utils::hex::{self, FromHex};

I imagine that if we want to completely eliminate ethers-core from the primitives crate we will also have to remove this dependency to switch to alloy, right? Or did I miss something?

[DaniPopes]

Already gone on alloy:

reth/crates/primitives/src/header.rs

Lines 718 to 721 in 9e613b4

	mod tests {
	use super::{Bytes, Decodable, Encodable, Header, H256};
	use crate::{address, b256, bloom, bytes, hex, Address, HeadersDirection, U256};
	use std::str::FromStr;