Caplin: disabled parallel exec of consensus and exec (#13597)

buggy but do not know why

cl/phase1/network/services/block_service.go

@@ -36,7 +36,6 @@ import (
 	"github.com/erigontech/erigon/cl/phase1/forkchoice"
 	"github.com/erigontech/erigon/cl/transition/impl/eth2"
 	"github.com/erigontech/erigon/cl/utils/eth_clock"
-	"golang.org/x/sync/errgroup"
 )
 
 var (
@@ -203,19 +202,19 @@ func (b *blockService) scheduleBlockForLaterProcessing(block *cltypes.SignedBeac
 
 // processAndStoreBlock processes and stores a block
 func (b *blockService) processAndStoreBlock(ctx context.Context, block *cltypes.SignedBeaconBlock) error {
-	group, _ := errgroup.WithContext(ctx)
+	// group, _ := errgroup.WithContext(ctx)
 
-	group.Go(func() error {
-		return b.forkchoiceStore.ProcessBlockExecution(ctx, block)
-	})
-	group.Go(func() error {
-		return b.forkchoiceStore.ProcessBlockConsensus(ctx, block)
-	})
+	// group.Go(func() error {
+	// 	return b.forkchoiceStore.ProcessBlockExecution(ctx, block)
+	// })
+	// group.Go(func() error {
+	// 	return b.forkchoiceStore.ProcessBlockConsensus(ctx, block)
+	// })
 
-	err := group.Wait()
-	if err != nil {
-		return err
-	}
+	// err := group.Wait()
+	// if err != nil {
+	// 	return err
+	// }
 
 	if err := b.db.Update(ctx, func(tx kv.RwTx) error {
 		return beacon_indicies.WriteBeaconBlockAndIndicies(ctx, tx, block, false)