NEW YORK — Megyn Kelly advises new Mayor Eric Adams to replace Manhattan District Attorney Alvin Bragg because Bragg ordered his prosecutors to go easy on many nonviolent criminals. Asked by attorney Arthur Aidala on “The Power Hour” on AM 970 what advice she would give the new mayor, the former Fox News host said, “Fire Alvin Bragg.” Kelly, who has lived in the city for 17 years and is raising her three kids here, said, “This guy is out of control. He is an actual threat to New Yorkers.” The lawyer, whose career at NBC ended when she defended blackface during a Halloween segment and who once …