Eric Adams told the truth . “You guys are going to have so much fun over the next four years,” he predicted to a gaggle of political journalists in July 2021, shortly after winning New York City’s Democratic mayoral primary. And they did. This has been a golden age for investigative reporting, City Hall Kremlinology, and political wisecracking — in quantity and quality, at least, if rarely in revenue for local media. Many would love to see Adams remain a staple of city political life, albeit not in any position of power. Could he be the night mayor emeritus? Flag-raising czar? Commissioner and sole officer of the Department of Neologism? These are but fantasies. Eric Adams’s turn in the spotlight has passed. New York will never have another mayor like him again.…