Remove checkpoint step 3000 from manifest

checkpoint_manifest.json

@@ -8,13 +8,6 @@
   "dataset_repo_id": "IDEAS-Lab-Northwestern/sim-table",
   "checkpoint_base_path": "checkpoints/pi05_clutter_libero_lora/sim_table_lora",
   "checkpoints": [
-    {
-      "step": 3000,
-      "path": "checkpoints/pi05_clutter_libero_lora/sim_table_lora/3000",
-      "local_source": "checkpoints/pi05_clutter_libero_lora/sim_table_lora/3000",
-      "size": "9.0G",
-      "files": 27
-    },
     {
       "step": 5000,
       "path": "checkpoints/pi05_clutter_libero_lora/sim_table_lora/5000",