U.S. District Judge Milton I. Shadur’s love of his work hasn’t faded after 37 years.“I find the job endlessly fascinating and fulfilling,” he said Tuesday.And although the 93-year-old Shadur wasn’t sure how much longer he would remain on the bench — he has told his incoming law clerks for the past two or three years to “read the actuarial tables” — he had not anticipated giving up his seat through retirement.Complications from recent surgery, however, prompted Shadur to …