diff --git a/django/utils/autoreload.py b/django/utils/autoreload.py
index bf3b14609a..fc330eb87e 100644
--- a/django/utils/autoreload.py
+++ b/django/utils/autoreload.py
@@ -245,13 +245,6 @@ class BaseReloader:
         logger.debug('Watching dir %s with glob %s.', path, glob)
         self.directory_globs[path].add(glob)
 
-    def watch_file(self, path):
-        path = Path(path)
-        if not path.is_absolute():
-            raise ValueError('%s must be absolute.' % path)
-        logger.debug('Watching file %s.', path)
-        self.extra_files.add(path)
-
     def watched_files(self, include_globs=True):
         """
         Yield all files that need to be watched, including module files and
diff --git a/tests/utils_tests/test_autoreload.py b/tests/utils_tests/test_autoreload.py
index 628749db01..5de276f035 100644
--- a/tests/utils_tests/test_autoreload.py
+++ b/tests/utils_tests/test_autoreload.py
@@ -416,15 +416,6 @@ class ReloaderTests(SimpleTestCase):
 
 
 class IntegrationTests:
-    @mock.patch('django.utils.autoreload.BaseReloader.notify_file_changed')
-    @mock.patch('django.utils.autoreload.iter_all_python_module_files', return_value=frozenset())
-    def test_file(self, mocked_modules, notify_mock):
-        self.reloader.watch_file(self.existing_file)
-        with self.tick_twice():
-            self.increment_mtime(self.existing_file)
-        self.assertEqual(notify_mock.call_count, 1)
-        self.assertCountEqual(notify_mock.call_args[0], [self.existing_file])
-
     @mock.patch('django.utils.autoreload.BaseReloader.notify_file_changed')
     @mock.patch('django.utils.autoreload.iter_all_python_module_files', return_value=frozenset())
     def test_glob(self, mocked_modules, notify_mock):
@@ -508,15 +499,6 @@ class IntegrationTests:
 class BaseReloaderTests(ReloaderTests):
     RELOADER_CLS = autoreload.BaseReloader
 
-    def test_watch_without_absolute(self):
-        with self.assertRaisesMessage(ValueError, 'test.py must be absolute.'):
-            self.reloader.watch_file('test.py')
-
-    def test_watch_with_single_file(self):
-        self.reloader.watch_file(self.existing_file)
-        watched_files = list(self.reloader.watched_files())
-        self.assertIn(self.existing_file, watched_files)
-
     def test_watch_with_glob(self):
         self.reloader.watch_dir(self.tempdir, '*.py')
         watched_files = list(self.reloader.watched_files())