W&B no longer "logs" (uploads) checkpoints.

[kylebgorman]

I also remove some seemingly pointless logging of model paths; can restore if there's a reason we need this.

Note that there exist alternatives: for instance we can log any checkpoint that's an improvement. From the docs:

# log model only if `val_accuracy` increases
wandb_logger = WandbLogger(log_model="all")
checkpoint_callback = ModelCheckpoint(monitor="val_accuracy", mode="max")
trainer = Trainer(logger=wandb_logger, callbacks=[checkpoint_callback])

But I think this would still be excessive and I can't imagine why you'd want to log a checkpoint on W&B, tbh.

[Adamits]

Thanks for catching this. I am sure this was here from copy/pasting from W&B examples. LGTM, pending the one inline comment.