diff --git a/django/forms/widgets.py b/django/forms/widgets.py
index 59b7880cd4..b1d885b2a3 100644
--- a/django/forms/widgets.py
+++ b/django/forms/widgets.py
@@ -979,11 +979,7 @@ class SelectDateWidget(Widget):
         date_context['year'] = self.select_widget(attrs, choices=year_choices).get_context(
             name=year_name,
             value=context['widget']['value']['year'],
-            attrs={
-                **context['widget']['attrs'],
-                'id': 'id_%s' % year_name,
-                'placeholder': _('Year') if self.is_required else False,
-            },
+            attrs={**context['widget']['attrs'], 'id': 'id_%s' % year_name},
         )
         month_choices = list(self.months.items())
         if not self.is_required:
@@ -992,11 +988,7 @@ class SelectDateWidget(Widget):
         date_context['month'] = self.select_widget(attrs, choices=month_choices).get_context(
             name=month_name,
             value=context['widget']['value']['month'],
-            attrs={
-                **context['widget']['attrs'],
-                'id': 'id_%s' % month_name,
-                'placeholder': _('Month') if self.is_required else False,
-            },
+            attrs={**context['widget']['attrs'], 'id': 'id_%s' % month_name},
         )
         day_choices = [(i, i) for i in range(1, 32)]
         if not self.is_required:
@@ -1005,11 +997,7 @@ class SelectDateWidget(Widget):
         date_context['day'] = self.select_widget(attrs, choices=day_choices,).get_context(
             name=day_name,
             value=context['widget']['value']['day'],
-            attrs={
-                **context['widget']['attrs'],
-                'id': 'id_%s' % day_name,
-                'placeholder': _('Day') if self.is_required else False,
-            },
+            attrs={**context['widget']['attrs'], 'id': 'id_%s' % day_name},
         )
         subwidgets = []
         for field in self._parse_date_fmt():
diff --git a/docs/releases/3.0.txt b/docs/releases/3.0.txt
index d3656d6883..616b708389 100644
--- a/docs/releases/3.0.txt
+++ b/docs/releases/3.0.txt
@@ -524,10 +524,6 @@ Miscellaneous
 
 * Support for ``pywatchman`` < 1.2.0 is removed.
 
-* HTML rendered by :class:`~django.forms.SelectDateWidget` for required fields
-  now have the ``placeholder`` attribute, which, mainly, may require some
-  adjustments in tests that compare HTML.
-
 * :func:`~django.utils.http.urlencode` now encodes iterable values as they are
   when ``doseq=False``, rather than iterating them, bringing it into line with
   the standard library :func:`urllib.parse.urlencode` function.
diff --git a/tests/forms_tests/widget_tests/test_selectdatewidget.py b/tests/forms_tests/widget_tests/test_selectdatewidget.py
index 29f2f2399d..ea1c31b487 100644
--- a/tests/forms_tests/widget_tests/test_selectdatewidget.py
+++ b/tests/forms_tests/widget_tests/test_selectdatewidget.py
@@ -314,46 +314,6 @@ class SelectDateWidgetTest(WidgetTest):
         self.assertFalse(GetNotRequiredDate().fields['mydate'].widget.is_required)
         self.assertTrue(GetRequiredDate().fields['mydate'].widget.is_required)
 
-    def test_selectdate_required_placeholder(self):
-        for required in (True, False):
-            field = DateField(widget=SelectDateWidget(years=('2018', '2019')), required=required)
-            self.check_html(field.widget, 'my_date', '', html=(
-                """
-                <select name="my_date_month" id="id_my_date_month" %(m_placeholder)s>
-                    %(empty)s
-                    <option value="1">January</option>
-                    <option value="2">February</option>
-                    <option value="3">March</option>
-                    <option value="4">April</option>
-                    <option value="5">May</option>
-                    <option value="6">June</option>
-                    <option value="7">July</option>
-                    <option value="8">August</option>
-                    <option value="9">September</option>
-                    <option value="10">October</option>
-                    <option value="11">November</option>
-                    <option value="12">December</option>
-                </select>
-                <select name="my_date_day" id="id_my_date_day" %(d_placeholder)s>
-                    %(empty)s
-                    %(days_options)s
-                </select>
-                <select name="my_date_year" id="id_my_date_year" %(y_placeholder)s>
-                    %(empty)s
-                    <option value="2018">2018</option>
-                    <option value="2019">2019</option>
-                </select>
-                """ % {
-                    'days_options': '\n'.join(
-                        '<option value="%s">%s</option>' % (i, i) for i in range(1, 32)
-                    ),
-                    'm_placeholder': 'placeholder="Month"' if required else '',
-                    'd_placeholder': 'placeholder="Day"' if required else '',
-                    'y_placeholder': 'placeholder="Year"' if required else '',
-                    'empty': '' if required else '<option selected value="">---</option>',
-                }
-            ))
-
     def test_selectdate_empty_label(self):
         w = SelectDateWidget(years=('2014',), empty_label='empty_label')