Remove unnecessary line breaks

Author: DataboyUsen

tests/_test_mf.py

@@ -197,5 +197,4 @@ def evaluate_single_params(params):
 for param, value in best_params.items():
     print(f"  {param:12}: {value}")
 print(f"\nBest Validation Accuracy: {best_acc:.4f}")
-
 print("="*50)