NEW YORK — The public can’t see the testimony a grand jury weighed before declining to indict a white police officer in the chokehold death of an unarmed black man, an appeals court said Wednesday, citing long-standing reasons for grand jury confidentiality.“The public interest in disclosure was outweighed by the dangers inherent in violating the secrecy of the grand jury proceeding,” judges in the state Supreme Court Appellate Division’s 2nd Department wrote.Grand juries have operated for centuries behind closed doors …