Remove unused Kusama Snowbridge code

CHANGELOG.md

@@ -51,6 +51,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Polkadot chains: allow arbitrary XCM execution ([polkadot-fellows/runtimes#345](https://github.com/polkadot-fellows/runtimes/pull/345)).
 - Bounties: Remove payout delay ([polkadot-fellows/runtimes#386](https://github.com/polkadot-fellows/runtimes/pull/386)).
 - Polkadot System Chains: Reduce the base transaction fee by half ([polkadot-fellows/runtimes#398](https://github.com/polkadot-fellows/runtimes/pull/398)).
+- Kusama: Remove unused Snowbridge code and configs ([polkadot-fellows/runtimes#411](https://github.com/polkadot-fellows/runtimes/pull/411).
 
 #### From [#322](https://github.com/polkadot-fellows/runtimes/pull/322):
 

integration-tests/emulated/chains/parachains/bridges/bridge-hub-kusama/src/genesis.rs

@@ -65,11 +65,6 @@ pub fn genesis() -> Storage {
 			owner: Some(get_account_id_from_seed::<sr25519::Public>(accounts::BOB)),
 			..Default::default()
 		},
-		ethereum_system: bridge_hub_kusama_runtime::EthereumSystemConfig {
-			para_id: PARA_ID.into(),
-			asset_hub_para_id: ASSET_HUB_PARA_ID.into(),
-			..Default::default()
-		},
 		..Default::default()
 	};
 

integration-tests/emulated/chains/parachains/bridges/bridge-hub-kusama/src/lib.rs

@@ -41,9 +41,6 @@ decl_test_parachains! {
 		pallets = {
 			PolkadotXcm: bridge_hub_kusama_runtime::PolkadotXcm,
 			Balances: bridge_hub_kusama_runtime::Balances,
-			EthereumSystem: bridge_hub_kusama_runtime::EthereumSystem,
-			EthereumInboundQueue: bridge_hub_kusama_runtime::EthereumInboundQueue,
-			EthereumOutboundQueue: bridge_hub_kusama_runtime::EthereumOutboundQueue,
 		}
 	},
 }

integration-tests/emulated/tests/bridges/bridge-hub-kusama/src/tests/mod.rs

@@ -18,7 +18,6 @@ use crate::*;
 mod asset_transfers;
 mod claim_assets;
 mod send_xcm;
-mod snowbridge;
 mod teleport;
 
 pub(crate) fn asset_hub_polkadot_location() -> Location {