code: void removeLog(PlainChangesLog log)
     {
        if (LOG.isDebugEnabled())
        {
           LOG.debug("tx removeLog() " + this + (transactionLog != null ? "\n" + transactionLog.dump() : "[NULL]"));
        }
  
        if (txStarted())
        {
           transactionLog.removeLog(log);
           if (transactionLog.getSize() == 0)
           {
              // Clear tx changes log if there is no log left
              transactionLog = null;
           }
        }
     }
docs: Re move a given changes log