Cleanup: remove resume-state folders (optimizer and training state)

Owner-requested cleanup (2026-10-16). Removed: the folders saved for resuming training (optimizer, scheduler, random states, train_state.json and the folder's own copy of the weights) and loose resume files. Every saved model file is kept.

ASPOMEGA-VPRED-REFIT/asp2_omega_refit-state/train_state.json

@@ -1 +0,0 @@
-{"current_epoch": 5, "current_step": 3967}