`apply_rotary_pos_emb` method removal without any notice

### Custom Node Testing

- [ ] I have tried disabling custom nodes and the issue persists (see [how to disable custom nodes](https://docs.comfy.org/troubleshooting/custom-node-issues#step-1%3A-test-with-all-custom-nodes-disabled) if you need help)

### Expected Behavior

`comfy.ldm.cosmos.predict2.apply_rotary_pos_emb()` worked well so far

### Actual Behavior

In #14192 `apply_rotary_pos_emb` was removed without any notifications so any nodes using cosmos-predict2 involving anima broke upon 0.24.0

### Steps to Reproduce

`from comfy.ldm.cosmos.predict2 import apply_rotary_pos_emb` in python

### Debug Logs

```powershell
ImportError: cannot import name 'apply_rotary_pos_emb' from 'comfy.ldm.cosmos.predict2' (/home/jovyan/ComfyUI/main/comfy/ldm/cosmos/predict2.py)
```

### Other

_No response_