Remove p2p hash calculations

p2p/sync.go

@@ -263,7 +263,7 @@ func (s *syncService) processSpecBlockParts(
 	return orderedBlockBodiesCh
 }
 
-//nolint:gocyclo,funlen
+//nolint:gocyclo
 func (s *syncService) adaptAndSanityCheckBlock(ctx context.Context, header *spec.SignedBlockHeader, contractDiffs []*spec.ContractDiff,
 	classes []*spec.Class, txs []*spec.Transaction, receipts []*spec.Receipt, events []*spec.Event, prevBlockRoot *felt.Felt,
 ) <-chan blockBody {
@@ -359,40 +359,6 @@ func (s *syncService) adaptAndSanityCheckBlock(ctx context.Context, header *spec
 
 			stateDiff := p2p2core.AdaptStateDiff(stateReader, contractDiffs, classes)
 
-			blockVer, err := core.ParseBlockVersion(coreBlock.ProtocolVersion)
-			if err != nil {
-				bodyCh <- blockBody{err: fmt.Errorf("failed to parse block version: %w", err)}
-				return
-			}
-
-			if blockVer.LessThan(core.Ver0_13_2) {
-				p2pHash, err := s.blockchain.BlockP2PHashByNumber(coreBlock.Number)
-				if err != nil {
-					bodyCh <- blockBody{err: fmt.Errorf("failed to get p2p hash: %w", err)}
-					return
-				}
-
-				expectedHash, _, err := core.Post0132Hash(coreBlock, stateDiff)
-				if err != nil {
-					bodyCh <- blockBody{err: fmt.Errorf("failed to compute p2p hash: %w", err)}
-					return
-				}
-
-				if !p2pHash.Equal(expectedHash) {
-					err = fmt.Errorf("received p2p hash %v doesn't match expected %v", coreBlock.Hash, expectedHash)
-					bodyCh <- blockBody{err: err}
-					return
-				}
-
-				// once we verified p2p hash with received one above
-				// we need to overwrite it with old scheme hash
-				coreBlock.Hash, err = core.BlockHash(coreBlock)
-				if err != nil {
-					bodyCh <- blockBody{err: fmt.Errorf("failed to generate block hash: %w", err)}
-					return
-				}
-			}
-
 			stateUpdate := &core.StateUpdate{
 				BlockHash: coreBlock.Hash,
 				NewRoot:   coreBlock.GlobalStateRoot,