Removes Snowbridge parachain directory (#3186)

Removes the `bridges/snowbridge/parachain` directory and moves
everything up to under `snowbridge` directly. We are cleaning up our
local dev env after merging our crates into the polkadot-sdk.

---------

Co-authored-by: claravanstaden <Cats 4 life!>

bridges/snowbridge/primitives/ethereum/src/lib.rs

@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: 2023 Snowfork <hello@snowfork.com>
+#![cfg_attr(not(feature = "std"), no_std)]
+
+pub mod header;
+pub mod log;
+pub mod mpt;
+pub mod receipt;
+
+pub use ethereum_types::{Address, H160, H256, H64, U256};
+
+pub use header::{Bloom, Header, HeaderId};
+pub use log::Log;
+pub use receipt::Receipt;
+
+#[derive(Debug)]
+pub enum DecodeError {
+	// Unexpected RLP data
+	InvalidRLP(rlp::DecoderError),
+	// Data does not match expected ABI
+	InvalidABI(ethabi::Error),
+	// Invalid message payload
+	InvalidPayload,
+}
+
+impl From<rlp::DecoderError> for DecodeError {
+	fn from(err: rlp::DecoderError) -> Self {
+		DecodeError::InvalidRLP(err)
+	}
+}
+
+impl From<ethabi::Error> for DecodeError {
+	fn from(err: ethabi::Error) -> Self {
+		DecodeError::InvalidABI(err)
+	}
+}