Goo Goo Dolls front man Johnny Rzeznik said he doesn’t consider himself a rock star, at least not anymore.“I think in 1997 or ’98 I was a rock star for sure,” he said during a recent telephone interview. “It’s got nothing to do with money or any of that. It’s all of a sudden you go from being nobody to having all these people know who you are and treat you differently. But the shine of that wore off really quickly for me, and I was really grateful that it did because it let me get back to work.”It’s hard to fault Rzeznik’s work ethic, or his rate of success. The singer, who’s playing the Grand