delete unused functionm

Signed-off-by: Yang Zhang <[email protected]>

Author: yzhang123

sub-packages/bionemo-esm2/tests/bionemo/esm2/scripts/test_finetune_esm2.py

@@ -17,7 +17,6 @@
 from pathlib import Path
 from unittest.mock import patch
 
-import numpy as np
 import pytest
 from nemo.lightning import io
 
@@ -455,8 +454,3 @@ def r_data_to_csv(data, path):
     # Save the DataFrame to a CSV file
     df.to_csv(csv_file, index=False)
     return csv_file
-
-
-def mse(y_true, y_pred):
-    # Handle broadcasting if arrays have different shapes
-    return np.mean((y_true - y_pred) ** 2)