Can't find refrigerator water suppy line shut-off
I am moving my refrigerator from one side of kitchen to another side. The ice maker water supply line will be restored at the new location. But I can't find the one to the old location since the basement was finished. How do I deal with it? My contractor suggests to leave it and seal it. But I am concern about leakage might happen down the road since the old line will be put inside the wall.