core: revert invalid block dedup code (#15235)

629b5837 · Péter Szilágyi · Felix Lange · c2d93ded · 629b5837
Commit 629b5837 authored Oct 03, 2017 by Péter Szilágyi Committed by Felix Lange Oct 03, 2017
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blockchain.go core/blockchain.go +0 -5

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--- a/core/blockchain.go
+++ b/core/blockchain.go
@@ -796,11 +796,6 @@ func (bc *BlockChain) WriteBlockAndState(block *types.Block, receipts []*types.R
 	bc.mu.Lock()
 	defer bc.mu.Unlock()

-	if bc.HasBlock(block.Hash(), block.NumberU64()) {
-		log.Trace("Block existed", "hash", block.Hash())
-		return
-	}
-
 	localTd := bc.GetTd(bc.currentBlock.Hash(), bc.currentBlock.NumberU64())
 	externTd := new(big.Int).Add(block.Difficulty(), ptd)