Deleter or deletor? [duplicate]
I have not found either word in a dictionary, nor am I familiar with them in everyday English.
You could use eraser.
a person or thing that erases.
Where erase means, among other things:
To remove (data) from computer storage.
But as FumbleFingers says, it makes more sense to name it after the whole function of the object. E.g. File eraser.