code: func dbRemoveSpendJournalEntry(dbTx database.Tx, blockHash *chainhash.Hash) error {
  	spendBucket := dbTx.Metadata().Bucket(spendJournalBucketName)
  	return spendBucket.Delete(blockHash[:])
  }
docs: // dbRemoveSpendJournalEntry uses an existing database transaction to remove the
  // spend journal entry for the passed block hash.