From 9367a9e9f31f828beb19ba7d577b9e1542523c22 Mon Sep 17 00:00:00 2001
From: Lucca Martins <lucca_martins30@yahoo.com.br>
Date: Sun, 16 Feb 2025 16:57:38 -0300
Subject: [PATCH] remove byzantine routine prefetcher

---
 core/blockchain.go | 22 ----------------------
 1 file changed, 22 deletions(-)

diff --git a/core/blockchain.go b/core/blockchain.go
index a0f2820592..df24799982 100644
--- a/core/blockchain.go
+++ b/core/blockchain.go
@@ -2334,28 +2334,6 @@ func (bc *BlockChain) insertChain(chain types.Blocks, setHead bool, makeWitness
 		if parent == nil {
 			parent = bc.GetHeader(block.ParentHash(), block.NumberU64()-1)
 		}
-		statedb, err := state.New(parent.Root, bc.statedb)
-		if err != nil {
-			return nil, it.index, err
-		}
-		statedb.SetLogger(bc.logger)
-
-		// // If we are past Byzantium, enable prefetching to pull in trie node paths
-		// // while processing transactions. Before Byzantium the prefetcher is mostly
-		// // useless due to the intermediate root hashing after each transaction.
-		// if bc.chainConfig.IsByzantium(block.Number()) {
-		// 	// Generate witnesses either if we're self-testing, or if it's the
-		// 	// only block being inserted. A bit crude, but witnesses are huge,
-		// 	// so we refuse to make an entire chain of them.
-		// 	if bc.vmConfig.StatelessSelfValidation || (makeWitness && len(chain) == 1) {
-		// 		witness, err = stateless.NewWitness(block.Header(), bc)
-		// 		if err != nil {
-		// 			return nil, it.index, err
-		// 		}
-		// 	}
-		// 	statedb.StartPrefetcher("chain", witness)
-		// }
-		// activeState = statedb
 
 		// If we have a followup block, run that against the current state to pre-cache
 		// transactions and probabilistically some of the account/storage trie nodes.