diff --git a/distutils/command/register.py b/distutils/command/register.py
index 1089daf7..9645401f 100644
--- a/distutils/command/register.py
+++ b/distutils/command/register.py
@@ -11,7 +11,6 @@
 import urllib.parse
 import urllib.request
 from distutils._log import log
-from warnings import warn
 
 from more_itertools import always_iterable
 
@@ -65,19 +64,6 @@ def run(self):
         else:
             self.send_metadata()
 
-    def check_metadata(self):
-        """Deprecated API."""
-        warn(
-            "distutils.command.register.check_metadata is deprecated; "
-            "use the check command instead",
-            DeprecationWarning,
-        )
-        check = self.distribution.get_command_obj('check')
-        check.ensure_finalized()
-        check.strict = self.strict
-        check.restructuredtext = True
-        check.run()
-
     def _set_config(self):
         """Reads the configuration file and set attributes."""
         config = self._read_pypirc()
diff --git a/distutils/command/sdist.py b/distutils/command/sdist.py
index eda6afe8..d723a1c9 100644
--- a/distutils/command/sdist.py
+++ b/distutils/command/sdist.py
@@ -8,7 +8,6 @@
 from distutils._log import log
 from glob import glob
 from itertools import filterfalse
-from warnings import warn
 
 from ..core import Command
 from ..errors import DistutilsOptionError, DistutilsTemplateError
@@ -177,17 +176,6 @@ def run(self):
         # or zipfile, or whatever.
         self.make_distribution()
 
-    def check_metadata(self):
-        """Deprecated API."""
-        warn(
-            "distutils.command.sdist.check_metadata is deprecated, \
-              use the check command instead",
-            PendingDeprecationWarning,
-        )
-        check = self.distribution.get_command_obj('check')
-        check.ensure_finalized()
-        check.run()
-
     def get_file_list(self):
         """Figure out the list of files to include in the source
         distribution, and put it in 'self.filelist'.  This might involve
diff --git a/distutils/tests/test_sdist.py b/distutils/tests/test_sdist.py
index 7daaaa63..c49a4bfc 100644
--- a/distutils/tests/test_sdist.py
+++ b/distutils/tests/test_sdist.py
@@ -4,7 +4,6 @@
 import pathlib
 import shutil  # noqa: F401
 import tarfile
-import warnings
 import zipfile
 from distutils.archive_util import ARCHIVE_FORMATS
 from distutils.command.sdist import sdist, show_formats
@@ -20,7 +19,6 @@
 import pytest
 from more_itertools import ilen
 
-from .compat.py38 import check_warnings
 from .unix_compat import grp, pwd, require_uid_0, require_unix_id
 
 SETUP_PY = """
@@ -275,14 +273,6 @@ def test_metadata_check_option(self, caplog):
         cmd.run()
         assert len(self.warnings(caplog.messages, 'warning: check: ')) == 0
 
-    def test_check_metadata_deprecated(self):
-        # makes sure make_metadata is deprecated
-        dist, cmd = self.get_cmd()
-        with check_warnings() as w:
-            warnings.simplefilter("always")
-            cmd.check_metadata()
-            assert len(w.warnings) == 1
-
     def test_show_formats(self, capsys):
         show_formats()