Remove flaky dep (#1361)

* Remove flaky dep

* Remove unused pytest import

Author: eddiebergman

Dockerfile

@@ -32,7 +32,7 @@ ADD . /auto-sklearn/
 
 # Upgrade pip then install dependencies
 RUN pip3 install --upgrade pip
-RUN pip3 install pytest==4.6.* pep8 codecov pytest-cov flake8 flaky openml
+RUN pip3 install pytest==4.6.* pep8 codecov pytest-cov flake8 openml
 RUN cat /auto-sklearn/requirements.txt | xargs -n 1 -L 1 pip3 install
 RUN pip3 install jupyter
 

setup.py

@@ -30,7 +30,6 @@
         "mypy",
         "pytest-xdist",
         "pytest-timeout",
-        "flaky",
         "openml",
         "pre-commit",
         "pytest-cov",

test/test_pipeline/components/feature_preprocessing/test_kernel_pca.py

@@ -1,7 +1,5 @@
 import unittest
 
-import pytest
-
 from sklearn.linear_model import RidgeClassifier
 from autosklearn.pipeline.components.feature_preprocessing.kernel_pca import \
     KernelPCA
@@ -25,7 +23,6 @@ def test_default_configuration_sparse(self):
         self.assertEqual(transformation.shape[0], original.shape[0])
         self.assertFalse((transformation == 0).all())
 
-    @pytest.mark.flaky()
     def test_default_configuration_classify(self):
         for i in range(5):
             X_train, Y_train, X_test, Y_test = get_dataset(dataset='digits',