Refs #25079 -- Removed obsolete system check for TEMPLATE_* settings.

django/core/checks/__init__.py

@@ -9,7 +9,6 @@ from .registry import Tags, register, run_checks, tag_exists
 
 # Import these to force registration of checks
 import django.core.checks.caches  # NOQA isort:skip
-import django.core.checks.compatibility.django_1_8_0  # NOQA isort:skip
 import django.core.checks.compatibility.django_1_10  # NOQA isort:skip
 import django.core.checks.database  # NOQA isort:skip
 import django.core.checks.model_checks  # NOQA isort:skip

django/core/checks/compatibility/django_1_8_0.py

@@ -1,27 +0,0 @@
-from __future__ import unicode_literals
-
-from django.conf import settings
-
-from .. import Tags, Warning, register
-
-
-@register(Tags.compatibility)
-def check_duplicate_template_settings(app_configs, **kwargs):
-    if settings.TEMPLATES:
-        values = [
-            'TEMPLATE_DIRS',
-            'TEMPLATE_CONTEXT_PROCESSORS',
-            'TEMPLATE_DEBUG',
-            'TEMPLATE_LOADERS',
-            'TEMPLATE_STRING_IF_INVALID',
-        ]
-        defined = [value for value in values if getattr(settings, value, None)]
-        if defined:
-            return [Warning(
-                "The standalone TEMPLATE_* settings were deprecated in Django "
-                "1.8 and the TEMPLATES dictionary takes precedence. You must "
-                "put the values of the following settings into your default "
-                "TEMPLATES dict: %s." % ", ".join(defined),
-                id='1_8.W001',
-            )]
-    return []

docs/ref/checks.txt

@@ -112,7 +112,8 @@ that might occur as a result of a version upgrade.
   Django 1.8 and the :setting:`TEMPLATES` dictionary takes precedence. You must
   put the values of the following settings into your defaults ``TEMPLATES``
   dict: ``TEMPLATE_DIRS``, ``TEMPLATE_CONTEXT_PROCESSORS``, ``TEMPLATE_DEBUG``,
-  ``TEMPLATE_LOADERS``, ``TEMPLATE_STRING_IF_INVALID``.
+  ``TEMPLATE_LOADERS``, ``TEMPLATE_STRING_IF_INVALID``. *This check was removed
+  in Django 2.0*.
 * **1_10.W001**: The ``MIDDLEWARE_CLASSES`` setting is deprecated in Django
   1.10  and the :setting:`MIDDLEWARE` setting takes precedence. Since you've
   set ``MIDDLEWARE``, the value of ``MIDDLEWARE_CLASSES`` is ignored.

tests/check_framework/tests_1_8_compatibility.py

@@ -1,29 +0,0 @@
-from django.core.checks.compatibility.django_1_8_0 import \
-    check_duplicate_template_settings
-from django.test import SimpleTestCase
-from django.test.utils import override_settings
-
-
-class CheckDuplicateTemplateSettingsTest(SimpleTestCase):
-
-    def test_not_raised_if_no_templates_setting(self):
-        self.assertEqual(check_duplicate_template_settings(None), [])
-
-    @override_settings(
-        TEMPLATES=[{'BACKEND': 'django.template.backends.django.DjangoTemplates'}],
-        TEMPLATE_DIRS=['/path/to/dirs'],
-    )
-    def test_duplicate_setting(self):
-        result = check_duplicate_template_settings(None)
-        self.assertEqual(result[0].id, '1_8.W001')
-
-    @override_settings(
-        TEMPLATES=[{'BACKEND': 'django.template.backends.django.DjangoTemplates'}],
-        TEMPLATE_DIRS=['/path/to/dirs'],
-        TEMPLATE_DEBUG=True,
-    )
-    def test_multiple_duplicate_settings(self):
-        result = check_duplicate_template_settings(None)
-        self.assertEqual(len(result), 1)
-        self.assertIn('TEMPLATE_DIRS', result[0].msg)
-        self.assertIn('TEMPLATE_DEBUG', result[0].msg)