rm unused X_train in lof tests
@@ -51,7 +51,6 @@ def test_lof_performance():
# Generate train/test data
rng = check_random_state(2)
X = 0.3 * rng.randn(120, 2)
- X_train = np.r_[X + 2, X - 2]
X_train = X[:100]
# Generate some abnormal novel observations
