EAST RUTHERFORD, N.J.—Dave Gettleman is out as the general manager of the New York Giants after a fourth straight double-digit losing season. The Giants announced the 70-year-old Gettleman retired Monday, a day after New York (4–13) dropped its season finale 22–7 to Washington. It was the sixth straight loss and it ended a dismal, injury-plagued second season under coach Joe Judge. Gettleman probably would have been fired had he not stepped down. “It was a privilege to serve as the general manager of the New York Giants the last four years and to have spent so many years of my career with this franchise,” Gettleman said. “We obviously have not had the on-the-field success I expected, and that is disappointing. However, I have many fond memories here, including two Super Bowl victories, and I wish the team and organization only the best moving forward. There are many good people here …