[4.1.x] Fixed #33855 -- Removed unnecessary system check calls from test worker initialization.

Regression in 3b3f38b3b09b0f2373e51406ecb8c9c45d36aebc.
Backport of 24effbceb871e71d3bc320b91252f743714722df from main

django/test/runner.py

@@ -20,12 +20,7 @@ from io import StringIO
 from django.core.management import call_command
 from django.db import connections
 from django.test import SimpleTestCase, TestCase
-from django.test.utils import (
+from django.test.utils import NullTimeKeeper, TimeKeeper, iter_test_cases
-    NullTimeKeeper,
-    TimeKeeper,
-    captured_stdout,
-    iter_test_cases,
-)
 from django.test.utils import setup_databases as _setup_databases
 from django.test.utils import setup_test_environment
 from django.test.utils import teardown_databases as _teardown_databases
@@ -433,8 +428,6 @@ def _init_worker(
             if value := serialized_contents.get(alias):
                 connection._test_serialized_contents = value
         connection.creation.setup_worker_connection(_worker_id)
-        with captured_stdout():
-            call_command("check", databases=connections)
 
 
 def _run_subsuite(args):

tests/check_framework/tests.py

@@ -1,5 +1,7 @@
+import multiprocessing
 import sys
 from io import StringIO
+from unittest import skipIf
 
 from django.apps import apps
 from django.core import checks
@@ -361,6 +363,11 @@ class CheckFrameworkReservedNamesTests(SimpleTestCase):
         self.assertEqual(errors, expected)
 
 
+@skipIf(
+    multiprocessing.get_start_method() == "spawn",
+    "Spawning reimports modules, overwriting my_check.did_run to False, making this "
+    "test useless.",
+)
 class ChecksRunDuringTests(SimpleTestCase):
     databases = "__all__"