Curtis Nagle, who covers retailers for Bank of America, is giving up trying to figure out what’s next for GameStop and Bed Bath & Beyond.Nagle wrote in two reports late Thursday that he’s suspending coverage of GameStop (GME) and that he now has no official rating on Bed Bath & Beyond (BBBY). Both stocks have surged this year, in part because of support from Reddit’s army of fans on the site’s popular WallStreetBets board. Shares of the two retailers dipped