Removed django.test.simple and django.test._doctest per deprecation t…

…imeline.

refs django#17365, django#17366, django#18727.

docs/ref/settings.txt

@@ -2067,11 +2067,6 @@ Default: ``'django.test.runner.DiscoverRunner'``
 The name of the class to use for starting the test suite. See
 :ref:`other-testing-frameworks`.
 
-.. versionchanged:: 1.6
-
-    Previously the default ``TEST_RUNNER`` was
-    ``django.test.simple.DjangoTestSuiteRunner``.
-
 .. setting:: THOUSAND_SEPARATOR
 
 THOUSAND_SEPARATOR

setup.cfg

@@ -3,7 +3,7 @@ doc_files = docs extras AUTHORS INSTALL LICENSE README.rst
 install-script = scripts/rpm-install.sh
 
 [flake8]
-exclude=build,.git,./django/utils/dictconfig.py,./django/utils/unittest.py,./django/utils/lru_cache.py,./tests/comment_tests/*,./django/test/_doctest.py,./django/utils/six.py,./django/conf/app_template/*,./django/dispatch/weakref_backports.py
+exclude=build,.git,./django/utils/dictconfig.py,./django/utils/unittest.py,./django/utils/lru_cache.py,./django/utils/six.py,./django/conf/app_template/*,./django/dispatch/weakref_backports.py
 ignore=E128,E501,W601
 
 [metadata]

tests/test_runner/tests.py

@@ -4,15 +4,14 @@
 from __future__ import unicode_literals
 
 from optparse import make_option
-import types
 import unittest
 
 from django.core.exceptions import ImproperlyConfigured
 from django.core.management import call_command
 from django import db
 from django.test import runner, TestCase, TransactionTestCase, skipUnlessDBFeature
 from django.test.testcases import connections_support_transactions
-from django.test.utils import IgnoreAllDeprecationWarningsMixin, override_system_checks
+from django.test.utils import override_system_checks
 from django.utils import six
 
 from admin_scripts.tests import AdminScriptTestCase
@@ -221,27 +220,6 @@ def test_ticket_17477(self):
         self.assertNoOutput(err)
 
 
-class ModulesTestsPackages(IgnoreAllDeprecationWarningsMixin, unittest.TestCase):
-
-    def test_get_tests(self):
-        "Check that the get_tests helper function can find tests in a directory"
-        from django.apps import AppConfig
-        from django.test.simple import get_tests
-        app_config = AppConfig.create('test_runner.valid_app')
-        app_config.import_models({})
-        tests = get_tests(app_config)
-        self.assertIsInstance(tests, types.ModuleType)
-
-    def test_import_error(self):
-        "Test for #12658 - Tests with ImportError's shouldn't fail silently"
-        from django.apps import AppConfig
-        from django.test.simple import get_tests
-        app_config = AppConfig.create('test_runner_invalid_app')
-        app_config.import_models({})
-        with self.assertRaises(ImportError):
-            get_tests(app_config)
-
-
 class Sqlite3InMemoryTestDbs(TestCase):
 
     available_apps = []