A former Uber driver arrested on rape and kidnapping charges will remain held without bail after his attorneys chose not to contest a dangerousness hearing yesterday in South Boston Municipal Court.Alejandro Done did not appear in court during the proceeding, but his attorney, Tim Bradl, said he did not agree with the state’s motion to hold his client on the basis that he is a danger to the public.Bradl said he would not contest the motion, however, meaning Done will continue to be held.