Disabling checkpoints saving

[N1h1l1sT]

When instantiating a REaLTabFormer you can change the checkpoints_dir to a different path, but I want to completely disable saving the checkpoints because I'm training many models and I don't need checkpoints, so the size they require and the time it gets to save to a slow disk is an overhead that I'd like to avoid.

I could set the path to /dev/null I guess, but I'm thinking it'll still actually take time to save the file, even though it'll be dicarded, so the overhead is not avoided this way.