Dolly Parton ’s longtime manager moved Thursday to drop a complaint that accused the late singer’s nephew who acted as her head of security with threatening her estate and its employees. The manager, Danny Nozell, who runs She’s Alive, an entity founded to manage and protect Parton’s estate, had secured a temporary restraining order against Bryan Seaver and his security company, Squadron Augmented Protection Services, in September. Nozell was seeking to turn the order into a permanent...