CLN Removed some unused imports (#14074)

Johann Faouzi · NicolasHug · commit e669a89aa470 · 2019-06-12T14:19:45.000-04:00
diff --git a/sklearn/ensemble/tests/test_gradient_boosting.py b/sklearn/ensemble/tests/test_gradient_boosting.py
@@ -18,7 +18,6 @@
                               make_regression)
 from sklearn.ensemble import GradientBoostingClassifier
 from sklearn.ensemble import GradientBoostingRegressor
-from sklearn.ensemble.gradient_boosting import ZeroEstimator
 from sklearn.ensemble._gradient_boosting import predict_stages
 from sklearn.preprocessing import OneHotEncoder
 from sklearn.svm import LinearSVC
diff --git a/sklearn/externals/_pilutil.py b/sklearn/externals/_pilutil.py
@@ -44,7 +44,6 @@
 
 
 import numpy
-import tempfile
 
 from numpy import (amin, amax, ravel, asarray, arange, ones, newaxis,
                    transpose, iscomplexobj, uint8, issubdtype, array)
diff --git a/sklearn/metrics/tests/test_ranking.py b/sklearn/metrics/tests/test_ranking.py
@@ -19,7 +19,6 @@
 from sklearn.utils.testing import assert_array_equal
 from sklearn.utils.testing import assert_array_almost_equal
 from sklearn.utils.testing import assert_warns
-from sklearn.utils.testing import assert_warns_message
 
 from sklearn.metrics import auc
 from sklearn.metrics import average_precision_score
