Remove dispatch_result field (#1660)

* remove dispatch_result field

* fix benchmarks

bridges/bin/millau/runtime/src/rialto_messages.rs

@@ -194,7 +194,6 @@ mod tests {
 		let max_incoming_inbound_lane_data_proof_size =
 			bp_messages::InboundLaneData::<()>::encoded_size_hint_u32(
 				bp_millau::MAX_UNREWARDED_RELAYERS_IN_CONFIRMATION_TX as _,
-				bp_millau::MAX_UNCONFIRMED_MESSAGES_IN_CONFIRMATION_TX as _,
 			);
 		pallet_bridge_messages::ensure_able_to_receive_confirmation::<Weights>(
 			bp_millau::Millau::max_extrinsic_size(),

bridges/bin/millau/runtime/src/xcm_config.rs

@@ -317,7 +317,6 @@ mod tests {
 			assert_eq!(
 				dispatch_result,
 				MessageDispatchResult {
-					dispatch_result: true,
 					unspent_weight: frame_support::weights::Weight::from_ref_time(0),
 					dispatch_fee_paid_during_dispatch: false,
 				}