Removed relayer_account: &AccountId from MessageDispatch (#2080)

* SourceBridgeHubChain/TargetBridgeHubChain replaced with RelayerAccountChain

* Fix

* Removed `relayer_account: &AccountId` from `MessageDispatch`

bridges/bin/runtime-common/src/messages_xcm_extension.rs

@@ -26,7 +26,7 @@ use bp_messages::{
 	target_chain::{DispatchMessage, MessageDispatch},
 	LaneId,
 };
-use bp_runtime::{messages::MessageDispatchResult, AccountIdOf, Chain};
+use bp_runtime::messages::MessageDispatchResult;
 use codec::{Decode, Encode};
 use frame_support::{dispatch::Weight, CloneNoBound, EqNoBound, PartialEqNoBound};
 use pallet_bridge_messages::WeightInfoExt as MessagesPalletWeights;
@@ -46,23 +46,12 @@ pub enum XcmBlobMessageDispatchResult {
 }
 
 /// [`XcmBlobMessageDispatch`] is responsible for dispatching received messages
-pub struct XcmBlobMessageDispatch<SourceBridgeHubChain, TargetBridgeHubChain, DispatchBlob, Weights>
-{
-	_marker: sp_std::marker::PhantomData<(
-		SourceBridgeHubChain,
-		TargetBridgeHubChain,
-		DispatchBlob,
-		Weights,
-	)>,
+pub struct XcmBlobMessageDispatch<DispatchBlob, Weights> {
+	_marker: sp_std::marker::PhantomData<(DispatchBlob, Weights)>,
 }
 
-impl<
-		SourceBridgeHubChain: Chain,
-		TargetBridgeHubChain: Chain,
-		BlobDispatcher: DispatchBlob,
-		Weights: MessagesPalletWeights,
-	> MessageDispatch<AccountIdOf<SourceBridgeHubChain>>
-	for XcmBlobMessageDispatch<SourceBridgeHubChain, TargetBridgeHubChain, BlobDispatcher, Weights>
+impl<BlobDispatcher: DispatchBlob, Weights: MessagesPalletWeights> MessageDispatch
+	for XcmBlobMessageDispatch<BlobDispatcher, Weights>
 {
 	type DispatchPayload = XcmAsPlainPayload;
 	type DispatchLevelResult = XcmBlobMessageDispatchResult;
@@ -78,7 +67,6 @@ impl<
 	}
 
 	fn dispatch(
-		_relayer_account: &AccountIdOf<SourceBridgeHubChain>,
 		message: DispatchMessage<Self::DispatchPayload>,
 	) -> MessageDispatchResult<Self::DispatchLevelResult> {
 		let payload = match message.data.payload {