Removing month/date in status bar

Hey guys, when I had my 3GS, I download some app or winterboard plugin that allowed me to have month/date in my status bar. Now that I have restore my backup in my iPhone 4, this month/date is still in my status bar and I want to remove it. Do you know how? Since I have just installed "lockinfo", I want the status bar to show as much notifications as possible, and the month/date is taking too much place in the statusbar.