Remove codes not EFFECTS

[Dreamdweller]

I read the other post about removing the AR codes. But it didn't say how to remove the actual codes. I have tried looking through the INI files but the section with Action Replay Codes is blank. Every time a do a search to find a code then add it, it adds all the previous codes over and over again. I've done everything I can think of in the code field to remove it but nothing works. Do I have to go into another file to remove them? I'm sure it is something simple that I am missing.