BlockId removal: refactor: Backend::block_indexed_body (#12609)

* BlockId removal: refactor: Backend::block_indexed_body

It changes the arguments of `Backend::block_indexed_body` method from: `BlockId<Block>` to: `&Block::Hash`

This PR is part of BlockId::Number refactoring analysis (paritytech/substrate#11292)

* trigger CI job

substrate/client/api/src/client.rs

@@ -118,10 +118,8 @@ pub trait BlockBackend<Block: BlockT> {
 	///
 	/// Note that this will only fetch transactions
 	/// that are indexed by the runtime with `storage_index_transaction`.
-	fn block_indexed_body(
-		&self,
-		id: &BlockId<Block>,
-	) -> sp_blockchain::Result<Option<Vec<Vec<u8>>>>;
+	fn block_indexed_body(&self, hash: &Block::Hash)
+		-> sp_blockchain::Result<Option<Vec<Vec<u8>>>>;
 
 	/// Get full block by id.
 	fn block(&self, id: &BlockId<Block>) -> sp_blockchain::Result<Option<SignedBlock<Block>>>;

substrate/client/api/src/in_mem.rs

@@ -451,7 +451,7 @@ impl<Block: BlockT> blockchain::Backend<Block> for Blockchain<Block> {
 
 	fn block_indexed_body(
 		&self,
-		_id: BlockId<Block>,
+		_hash: &Block::Hash,
 	) -> sp_blockchain::Result<Option<Vec<Vec<u8>>>> {
 		unimplemented!("Not supported by the in-mem backend.")
 	}