Remove unused imports

Matt Roeschke · Matt Roeschke · commit ab1dc98d7008 · 2018-10-19T14:24:12.000-07:00
diff --git a/sklearn/linear_model/huber.py b/sklearn/linear_model/huber.py
@@ -3,7 +3,7 @@
 
 import numpy as np
 
-from scipy import optimize, sparse
+from scipy import optimize
 
 from ..base import BaseEstimator, RegressorMixin
 from .base import LinearModel
diff --git a/sklearn/utils/estimator_checks.py b/sklearn/utils/estimator_checks.py
@@ -41,8 +41,7 @@
 
 
 from sklearn.base import (clone, ClusterMixin,
-                          BaseEstimator, is_classifier, is_regressor,
-                          is_outlier_detector)
+                          is_classifier, is_regressor, is_outlier_detector)
 
 from sklearn.metrics import accuracy_score, adjusted_rand_score, f1_score
 
