Refs #31546 -- Removed support for boolean values in Command.requires…

…_system_checks.

Per deprecation timeline.

django/core/management/base.py

@@ -5,7 +5,6 @@
 import argparse
 import os
 import sys
-import warnings
 from argparse import ArgumentParser, HelpFormatter
 from io import TextIOBase
 
@@ -14,7 +13,6 @@
 from django.core.exceptions import ImproperlyConfigured
 from django.core.management.color import color_style, no_style
 from django.db import DEFAULT_DB_ALIAS, connections
-from django.utils.deprecation import RemovedInDjango41Warning
 
 ALL_CHECKS = '__all__'
 
@@ -252,14 +250,6 @@ def __init__(self, stdout=None, stderr=None, no_color=False, force_color=False):
         else:
             self.style = color_style(force_color)
             self.stderr.style_func = self.style.ERROR
-        if self.requires_system_checks in [False, True]:
-            warnings.warn(
-                "Using a boolean value for requires_system_checks is "
-                "deprecated. Use '__all__' instead of True, and [] (an empty "
-                "list) instead of False.",
-                RemovedInDjango41Warning,
-            )
-            self.requires_system_checks = ALL_CHECKS if self.requires_system_checks else []
         if (
             not isinstance(self.requires_system_checks, (list, tuple)) and
             self.requires_system_checks != ALL_CHECKS

docs/releases/4.1.txt

@@ -249,3 +249,6 @@ to remove usage of these features.
 * Support for assigning objects which don't support creating deep copies with
   ``copy.deepcopy()`` to class attributes in ``TestCase.setUpTestData()`` is
   removed.
+
+* Support for using a boolean value in
+  :attr:`.BaseCommand.requires_system_checks` is removed.

tests/user_commands/tests.py

@@ -14,9 +14,8 @@
 )
 from django.db import connection
 from django.test import SimpleTestCase, override_settings
-from django.test.utils import captured_stderr, extend_sys_path, ignore_warnings
+from django.test.utils import captured_stderr, extend_sys_path
 from django.utils import translation
-from django.utils.deprecation import RemovedInDjango41Warning
 
 from .management.commands import dance
 
@@ -422,45 +421,3 @@ def test_is_ignored_path_false(self):
     def test_normalize_path_patterns_truncates_wildcard_base(self):
         expected = [os.path.normcase(p) for p in ['foo/bar', 'bar/*/']]
         self.assertEqual(normalize_path_patterns(['foo/bar/*', 'bar/*/']), expected)
-
-
-class DeprecationTests(SimpleTestCase):
-    def test_requires_system_checks_warning(self):
-        class Command(BaseCommand):
-            pass
-
-        msg = (
-            "Using a boolean value for requires_system_checks is deprecated. "
-            "Use '__all__' instead of True, and [] (an empty list) instead of "
-            "False."
-        )
-        for value in [False, True]:
-            Command.requires_system_checks = value
-            with self.assertRaisesMessage(RemovedInDjango41Warning, msg):
-                Command()
-
-    @ignore_warnings(category=RemovedInDjango41Warning)
-    def test_requires_system_checks_true(self):
-        class Command(BaseCommand):
-            requires_system_checks = True
-
-            def handle(self, *args, **options):
-                pass
-
-        command = Command()
-        with mock.patch('django.core.management.base.BaseCommand.check') as mocked_check:
-            management.call_command(command, skip_checks=False)
-        mocked_check.assert_called_once_with()
-
-    @ignore_warnings(category=RemovedInDjango41Warning)
-    def test_requires_system_checks_false(self):
-        class Command(BaseCommand):
-            requires_system_checks = False
-
-            def handle(self, *args, **options):
-                pass
-
-        command = Command()
-        with mock.patch('django.core.management.base.BaseCommand.check') as mocked_check:
-            management.call_command(command)
-        self.assertIs(mocked_check.called, False)