feat: address suggestions from @bkontur

relay/kusama/src/lib.rs

@@ -386,7 +386,7 @@ impl pallet_mmr::Config for Runtime {
 	type LeafData = pallet_beefy_mmr::Pallet<Runtime>;
 	type BlockHashProvider = pallet_mmr::DefaultBlockHashProvider<Runtime>;
 	#[cfg(feature = "runtime-benchmarks")]
-	type BenchmarkHelper = ();
+	type BenchmarkHelper = parachains_paras::benchmarking::mmr_setup::MmrSetup<Runtime>;
 }
 
 /// MMR helper types.

relay/polkadot/src/lib.rs

@@ -373,7 +373,7 @@ impl pallet_mmr::Config for Runtime {
 	type LeafData = pallet_beefy_mmr::Pallet<Runtime>;
 	type BlockHashProvider = pallet_mmr::DefaultBlockHashProvider<Runtime>;
 	#[cfg(feature = "runtime-benchmarks")]
-	type BenchmarkHelper = ();
+	type BenchmarkHelper = parachains_paras::benchmarking::mmr_setup::MmrSetup<Runtime>;
 }
 
 /// MMR helper types.

system-parachains/asset-hubs/asset-hub-kusama/src/xcm_config.rs

@@ -513,19 +513,16 @@ pub mod bridging {
 				]
 			);
 
-			// TODO: @bkontur or @acatangiu, please confirm if this chain will be used at all.
 			pub const PolkadotNetwork: NetworkId = NetworkId::Polkadot;
 			pub const EthereumNetwork: NetworkId = NetworkId::Ethereum { chain_id: 1 };
-			// TODO: @bkontur or @acatangiu, please confirm if this should be in the configuration, or if
-			// this `chain_id` is just for testing purposes.
 			pub EthereumEcosystem: Location = Location::new(2, [GlobalConsensus(EthereumNetwork::get())]);
 			pub DotLocation: Location = Location::new(2, [GlobalConsensus(PolkadotNetwork::get())]);
 			pub AssetHubPolkadot: Location = Location::new(
 				2,
 				[
 					GlobalConsensus(PolkadotNetwork::get()),
 					Parachain(polkadot_runtime_constants::system_parachain::ASSET_HUB_ID),
-				],
+			],
 			);
 
 			/// Set up exporters configuration.