diff --git a/openedx/core/djangoapps/user_authn/views/register.py b/openedx/core/djangoapps/user_authn/views/register.py
index 61b28376fa68..8d6752187f5e 100644
--- a/openedx/core/djangoapps/user_authn/views/register.py
+++ b/openedx/core/djangoapps/user_authn/views/register.py
@@ -23,7 +23,6 @@
 from django.views.decorators.debug import sensitive_post_parameters
 from django_countries import countries
 from edx_django_utils.monitoring import set_custom_attribute
-from edx_toggles.toggles import WaffleFlag
 from openedx_events.learning.data import UserData, UserPersonalData
 from openedx_events.learning.signals import STUDENT_REGISTRATION_COMPLETED
 from openedx_filters.learning.filters import StudentRegistrationRequested
@@ -108,15 +107,6 @@
 REGISTER_USER = Signal()
 
 
-# .. toggle_name: registration.enable_failure_logging
-# .. toggle_implementation: WaffleFlag
-# .. toggle_default: False
-# .. toggle_description: Enable verbose logging of registration failure messages
-# .. toggle_use_cases: temporary
-# .. toggle_creation_date: 2020-04-30
-# .. toggle_target_removal_date: 2020-06-01
-# .. toggle_warning: This temporary feature toggle does not have a target removal date.
-REGISTRATION_FAILURE_LOGGING_FLAG = WaffleFlag('registration.enable_failure_logging', __name__)
 REAL_IP_KEY = 'openedx.core.djangoapps.util.ratelimit.real_ip'
 
 
@@ -699,8 +689,6 @@ def _create_response(self, request, response_dict, status_code, redirect_url=Non
         if status_code == 200:
             # keeping this `success` field in for now, as we have outstanding clients expecting this
             response_dict['success'] = True
-        else:
-            self._log_validation_errors(request, response_dict, status_code)
         if redirect_url:
             response_dict['redirect_url'] = redirect_url
         if error_code:
@@ -708,24 +696,6 @@ def _create_response(self, request, response_dict, status_code, redirect_url=Non
             set_custom_attribute('register_error_code', error_code)
         return JsonResponse(response_dict, status=status_code)
 
-    def _log_validation_errors(self, request, errors, status_code):
-        if not REGISTRATION_FAILURE_LOGGING_FLAG.is_enabled():
-            return
-
-        try:
-            for field_key, errors in errors.items():  # lint-amnesty, pylint: disable=redefined-argument-from-local
-                for error in errors:
-                    log.info(
-                        'message=registration_failed, status_code=%d, agent="%s", field="%s", error="%s"',
-                        status_code,
-                        request.META.get('HTTP_USER_AGENT', ''),
-                        field_key,
-                        error['user_message']
-                    )
-        except:  # pylint: disable=bare-except
-            log.exception("Failed to log registration validation error")
-            pass  # lint-amnesty, pylint: disable=unnecessary-pass
-
 
 # pylint: disable=line-too-long
 class RegistrationValidationView(APIView):
diff --git a/openedx/core/djangoapps/user_authn/views/tests/test_register.py b/openedx/core/djangoapps/user_authn/views/tests/test_register.py
index 22f2985199aa..69c4c9ffd090 100644
--- a/openedx/core/djangoapps/user_authn/views/tests/test_register.py
+++ b/openedx/core/djangoapps/user_authn/views/tests/test_register.py
@@ -20,7 +20,6 @@
 from testfixtures import LogCapture
 from openedx_events.tests.utils import OpenEdxEventsTestMixin
 
-from edx_toggles.toggles.testutils import override_waffle_flag
 from openedx.core.djangoapps.site_configuration.helpers import get_value
 from openedx.core.djangoapps.site_configuration.tests.test_util import with_site_configuration
 from openedx.core.djangoapps.user_api.accounts import (
@@ -49,7 +48,6 @@
 from openedx.core.djangoapps.user_api.tests.test_constants import SORTED_COUNTRIES
 from openedx.core.djangoapps.user_api.tests.test_helpers import TestCaseForm
 from openedx.core.djangoapps.user_api.tests.test_views import UserAPITestCase
-from openedx.core.djangoapps.user_authn.views.register import REGISTRATION_FAILURE_LOGGING_FLAG
 from openedx.core.djangolib.testing.utils import CacheIsolationTestCase, skip_unless_lms
 from openedx.core.lib.api import test_utils
 from common.djangoapps.student.helpers import authenticate_new_user
@@ -296,39 +294,6 @@ def test_register_fullname_url_validation_error(self):
             }
         )
 
-    @override_waffle_flag(REGISTRATION_FAILURE_LOGGING_FLAG, True)
-    def test_registration_failure_logging(self):
-        # Register a user
-        response = self.client.post(self.url, {
-            "email": self.EMAIL,
-            "name": self.NAME,
-            "username": self.USERNAME,
-            "password": self.PASSWORD,
-            "honor_code": "true",
-        })
-        self.assertHttpOK(response)
-
-        # Try to create a second user with the same email address
-        response = self.client.post(self.url, {
-            "email": self.EMAIL,
-            "name": "Someone Else",
-            "username": "someone_else",
-            "password": self.PASSWORD,
-            "honor_code": "true",
-        })
-
-        assert response.status_code == 409
-        response_json = json.loads(response.content.decode('utf-8'))
-        self.assertDictEqual(
-            response_json,
-            {
-                "email": [{
-                    "user_message": AUTHN_EMAIL_CONFLICT_MSG,
-                }],
-                "error_code": "duplicate-email"
-            }
-        )
-
     def test_register_duplicate_username_account_validation_error(self):
         # Register the first user
         response = self.client.post(self.url, {