Companion for paritytech/polkadot#6744: Retire OldV1SessionInfo

client/relay-chain-minimal-node/src/blockchain_rpc_client.rs

@@ -253,14 +253,6 @@ impl RuntimeApiSubsystemClient for BlockChainRpcClient {
 		Ok(self.rpc_client.parachain_host_session_info(at, index).await?)
 	}
 
-	async fn session_info_before_version_2(
-		&self,
-		at: Hash,
-		index: polkadot_primitives::SessionIndex,
-	) -> Result<Option<polkadot_primitives::OldV1SessionInfo>, sp_api::ApiError> {
-		Ok(self.rpc_client.parachain_host_session_info_before_version_2(at, index).await?)
-	}
-
 	async fn session_executor_params(
 		&self,
 		at: Hash,

client/relay-chain-rpc-interface/src/rpc_client.rs

@@ -19,9 +19,9 @@ use cumulus_primitives_core::{
 	relay_chain::{
 		vstaging::ExecutorParams, CandidateCommitments, CandidateEvent, CandidateHash,
 		CommittedCandidateReceipt, CoreState, DisputeState, GroupRotationInfo, Hash as RelayHash,
-		Header as RelayHeader, InboundHrmpMessage, OccupiedCoreAssumption, OldV1SessionInfo,
-		PvfCheckStatement, ScrapedOnChainVotes, SessionIndex, SessionInfo, ValidationCode,
-		ValidationCodeHash, ValidatorId, ValidatorIndex, ValidatorSignature,
+		Header as RelayHeader, InboundHrmpMessage, OccupiedCoreAssumption, PvfCheckStatement,
+		ScrapedOnChainVotes, SessionIndex, SessionInfo, ValidationCode, ValidationCodeHash,
+		ValidatorId, ValidatorIndex, ValidatorSignature,
 	},
 	InboundDownwardMessage, ParaId, PersistedValidationData,
 };
@@ -135,17 +135,6 @@ impl RelayChainRpcClient {
 		self.call_remote_runtime_function("BabeApi_current_epoch", at, None::<()>).await
 	}
 
-	/// Old method to fetch v1 session info.
-	pub async fn parachain_host_session_info_before_version_2(
-		&self,
-		at: RelayHash,
-		index: SessionIndex,
-	) -> Result<Option<OldV1SessionInfo>, RelayChainError> {
-		// The function in wasm never changes/gets augmented with a version
-		self.call_remote_runtime_function("ParachainHost_session_info", at, Some(index))
-			.await
-	}
-
 	/// Scrape dispute relevant from on-chain, backing votes and resolved disputes.
 	pub async fn parachain_host_on_chain_votes(
 		&self,