core: remove unused var

Author: rjl493456442

core/blockchain.go

@@ -111,11 +111,6 @@ var (
 	errChainStopped         = errors.New("blockchain is stopped")
 	errInvalidOldChain      = errors.New("invalid old chain")
 	errInvalidNewChain      = errors.New("invalid new chain")
-
-	// slowBlockProcessThreshold defines the threshold (10 Mgas per second) for
-	// considering a block execution as slow. Detailed performance metrics will be
-	// printed if debug mode is enabled.
-	slowBlockProcessThreshold = float64(10)
 )
 
 var (

core/blockchain_stats.go

@@ -102,7 +102,7 @@ func (s *ExecuteStats) logSlow(block *types.Block, slowBlockThreshold uint64) {
 	if slowBlockThreshold == 0 || s.MgasPerSecond == 0 {
 		return
 	}
-	if s.MgasPerSecond > slowBlockProcessThreshold {
+	if s.MgasPerSecond > float64(slowBlockThreshold) {
 		return
 	}
 	msg := fmt.Sprintf(`