BERLIN (Reuters) -Germany’s GDL train drivers’ union will call off its industrial action earlier than planned as negotiations with rail operator Deutsche Bahn resume, both sides informed on Saturday. The strike, the fourth and longest round of industrial action in a months-long dispute over pay and working hours, began at 2 am (0100 GMT) on Wednesday and was set to last until Monday evening. But the union said it will now end the strike in freight transport on Sunday at 6 pm (1700 GMT) and that in passenger transport on Monday at 2 am (0100 GMT). Transport workers across Europe have staged str…