Remove debug log

api/db/transaction.go

@@ -78,7 +78,6 @@ func (d *DB) AddTopup(adminNum int, memberNum int, amount int, comment string) (
 		Type:  "topup",
 		Total: amount,
 	}
-	log.Println(transaction.ProxyNum)
 	err = createTransaction(d.db, &transaction)
 	return
 }