WASHINGTON — The Obama administration is promising to change the way travelers can ask to be removed from its no-fly list of suspected terrorists banned from air travel. The decision comes after a federal judge’s ruling that there was no meaningful way to challenge the designation, a situation deemed unconstitutional. In response, the Justice Department said the U.S. will change the process during the next six months. As of late last summer, about 48,000 people were on the no-fly list. The government …