Merge pull request #492 from XinFinOrg/xdc-05

XDC-05 remove 1s waiting time in miner

miner/worker.go

@@ -563,7 +563,7 @@ func (self *worker) commitNewWork() {
 		tstamp = parent.Time().Int64() + 1
 	}
 	// this will ensure we're not going off too far in the future
-	if now := time.Now().Unix(); tstamp > now+1 {
+	if now := time.Now().Unix(); tstamp > now {
 		wait := time.Duration(tstamp-now) * time.Second
 		log.Info("Mining too far in the future", "wait", common.PrettyDuration(wait))
 		time.Sleep(wait)