Okay, here's what you do.
Go into your C: Drive.
Find the "Games" folder.
Then, find the "Toribash 3.99 (Or whichever version of Toribash you're playing on)" folder.
Next, find the "customs" folder.
Then, finally, all you have to do is find the folder with your name, and then find the file that is named "flame.tga" and delete it.