diff --git a/core/lib/Drupal/Core/Field/AllowedTagsXssTrait.php b/core/lib/Drupal/Core/Field/AllowedTagsXssTrait.php
deleted file mode 100644
index d893e1b3bdbbd9d349e9a71d305a9e901375177f..0000000000000000000000000000000000000000
--- a/core/lib/Drupal/Core/Field/AllowedTagsXssTrait.php
+++ /dev/null
@@ -1,53 +0,0 @@
-<?php
-
-namespace Drupal\Core\Field;
-
-/**
- * Useful methods when dealing with displaying allowed tags.
- *
- * @deprecated in drupal:8.0.0 and is removed from drupal:9.0.0. Use
- * \Drupal\Core\Field\FieldFilteredMarkup instead.
- *
- * @see \Drupal\Core\Field\FieldFilteredMarkup
- */
-trait AllowedTagsXssTrait {
-
- /**
- * Filters an HTML string to prevent XSS vulnerabilities.
- *
- * Like \Drupal\Component\Utility\Xss::filterAdmin(), but with a shorter list
- * of allowed tags.
- *
- * Used for items entered by administrators, like field descriptions, allowed
- * values, where some (mainly inline) mark-up may be desired (so
- * \Drupal\Component\Utility\Html::escape() is not acceptable).
- *
- * @param string $string
- * The string with raw HTML in it.
- *
- * @return \Drupal\Core\Field\FieldFilteredMarkup
- * An XSS safe version of $string, or an empty string if $string is not
- * valid UTF-8.
- */
- public function fieldFilterXss($string) {
- @trigger_error(__METHOD__ . ' is deprecated in drupal:8.0.0 and is removed in drupal:9.0.0. Use \Drupal\Core\Field\FieldFilteredMarkup::create() instead.', E_USER_DEPRECATED);
- return FieldFilteredMarkup::create($string);
- }
-
- /**
- * Returns a list of tags allowed by AllowedTagsXssTrait::fieldFilterXss().
- */
- public function allowedTags() {
- @trigger_error(__METHOD__ . ' is deprecated in drupal:8.0.0 and is removed in drupal:9.0.0. Use \Drupal\Core\Field\FieldFilteredMarkup::allowedTags() instead.', E_USER_DEPRECATED);
- return FieldFilteredMarkup::allowedTags();
- }
-
- /**
- * Returns a human-readable list of allowed tags for display in help texts.
- */
- public function displayAllowedTags() {
- @trigger_error(__METHOD__ . ' is deprecated in drupal:8.0.0 and is removed in drupal:9.0.0. Use \Drupal\Core\Field\FieldFilteredMarkup::displayAllowedTags() instead.', E_USER_DEPRECATED);
- return FieldFilteredMarkup::displayAllowedTags();
- }
-
-}
diff --git a/core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/NumericFormatterBase.php b/core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/NumericFormatterBase.php
index cf75facc8a1649a746d9a007270ffae7f1757724..bc3efc75926674a2d783b4a7caf82e3d3e6debbe 100644
--- a/core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/NumericFormatterBase.php
+++ b/core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/NumericFormatterBase.php
@@ -2,7 +2,6 @@
namespace Drupal\Core\Field\Plugin\Field\FieldFormatter;
-use Drupal\Core\Field\AllowedTagsXssTrait;
use Drupal\Core\Field\FormatterBase;
use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Form\FormStateInterface;
@@ -12,8 +11,6 @@
*/
abstract class NumericFormatterBase extends FormatterBase {
- use AllowedTagsXssTrait;
-
/**
* {@inheritdoc}
*/
diff --git a/core/lib/Drupal/Core/Field/WidgetBase.php b/core/lib/Drupal/Core/Field/WidgetBase.php
index c3b67ba0b76d2b98ed82d6b54088054f1f319a11..c43d93205b8bf175fe3e5f0596bf422c85c2d55d 100644
--- a/core/lib/Drupal/Core/Field/WidgetBase.php
+++ b/core/lib/Drupal/Core/Field/WidgetBase.php
@@ -19,8 +19,6 @@
*/
abstract class WidgetBase extends PluginSettingsBase implements WidgetInterface, ContainerFactoryPluginInterface {
- use AllowedTagsXssTrait;
-
/**
* The field definition.
*
diff --git a/core/modules/field_ui/src/Form/FieldConfigEditForm.php b/core/modules/field_ui/src/Form/FieldConfigEditForm.php
index 6c740485cd3f19eea26f8967a277cc2b23a4191b..db8122c4d93100cd5d0d1c0957c30599ea70763c 100644
--- a/core/modules/field_ui/src/Form/FieldConfigEditForm.php
+++ b/core/modules/field_ui/src/Form/FieldConfigEditForm.php
@@ -4,7 +4,6 @@
use Drupal\Core\Entity\EntityForm;
use Drupal\Core\Entity\EntityTypeBundleInfoInterface;
-use Drupal\Core\Field\AllowedTagsXssTrait;
use Drupal\Core\Field\FieldFilteredMarkup;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Url;
@@ -19,8 +18,6 @@
*/
class FieldConfigEditForm extends EntityForm {
- use AllowedTagsXssTrait;
-
/**
* The entity being used by this form.
*
diff --git a/core/modules/options/options.module b/core/modules/options/options.module
index 0face469bdfc79c1970c10d7ab9427601ded30d1..a0f586fa4d4e7ec06a8f2a1dee61eb5726d92d69 100644
--- a/core/modules/options/options.module
+++ b/core/modules/options/options.module
@@ -52,8 +52,8 @@ function options_field_storage_config_delete(FieldStorageConfigInterface $field_
* Returns the array of allowed values for a list field.
*
* The strings are not safe for output. Keys and values of the array should be
- * sanitized through \Drupal\Core\Field\AllowedTagsXssTrait::fieldFilterXss()
- * before being displayed.
+ * sanitized through \Drupal\Core\Field\FieldFilteredMarkup before being
+ * displayed.
*
* @param \Drupal\Core\Field\FieldStorageDefinitionInterface $definition
* The field storage definition.
diff --git a/core/modules/options/src/Plugin/Field/FieldFormatter/OptionsDefaultFormatter.php b/core/modules/options/src/Plugin/Field/FieldFormatter/OptionsDefaultFormatter.php
index ba1ba9c2b3c3eb1862fe6a01bc42b9e7fce1f402..5ad9539d3ea46c72d6ccb5f1c72acc4c9404c477 100644
--- a/core/modules/options/src/Plugin/Field/FieldFormatter/OptionsDefaultFormatter.php
+++ b/core/modules/options/src/Plugin/Field/FieldFormatter/OptionsDefaultFormatter.php
@@ -2,7 +2,6 @@
namespace Drupal\options\Plugin\Field\FieldFormatter;
-use Drupal\Core\Field\AllowedTagsXssTrait;
use Drupal\Core\Field\FieldFilteredMarkup;
use Drupal\Core\Field\FormatterBase;
use Drupal\Core\Field\FieldItemListInterface;
@@ -23,8 +22,6 @@
*/
class OptionsDefaultFormatter extends FormatterBase {
- use AllowedTagsXssTrait;
-
/**
* {@inheritdoc}
*/
diff --git a/core/modules/options/src/Plugin/Field/FieldFormatter/OptionsKeyFormatter.php b/core/modules/options/src/Plugin/Field/FieldFormatter/OptionsKeyFormatter.php
index 64f22e9b442e98b3fc4acfce2bdb4051a3997743..9a9165219a37ba3f9d9a1c424e435194fe64dd7e 100644
--- a/core/modules/options/src/Plugin/Field/FieldFormatter/OptionsKeyFormatter.php
+++ b/core/modules/options/src/Plugin/Field/FieldFormatter/OptionsKeyFormatter.php
@@ -2,7 +2,6 @@
namespace Drupal\options\Plugin\Field\FieldFormatter;
-use Drupal\Core\Field\AllowedTagsXssTrait;
use Drupal\Core\Field\FieldFilteredMarkup;
use Drupal\Core\Field\FormatterBase;
use Drupal\Core\Field\FieldItemListInterface;
@@ -22,8 +21,6 @@
*/
class OptionsKeyFormatter extends FormatterBase {
- use AllowedTagsXssTrait;
-
/**
* {@inheritdoc}
*/
diff --git a/core/modules/options/src/Plugin/Field/FieldType/ListItemBase.php b/core/modules/options/src/Plugin/Field/FieldType/ListItemBase.php
index 3b29b04b816df05f231d27a933a3da2d859c4356..f7b95dfd1e9d8ab6c556c380ca571e24619e8cc6 100644
--- a/core/modules/options/src/Plugin/Field/FieldType/ListItemBase.php
+++ b/core/modules/options/src/Plugin/Field/FieldType/ListItemBase.php
@@ -2,7 +2,6 @@
namespace Drupal\options\Plugin\Field\FieldType;
-use Drupal\Core\Field\AllowedTagsXssTrait;
use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\Field\FieldItemBase;
use Drupal\Core\Form\FormStateInterface;
@@ -15,8 +14,6 @@
*/
abstract class ListItemBase extends FieldItemBase implements OptionsProviderInterface {
- use AllowedTagsXssTrait;
-
/**
* {@inheritdoc}
*/
diff --git a/core/modules/options/src/Plugin/views/argument/NumberListField.php b/core/modules/options/src/Plugin/views/argument/NumberListField.php
index d3deeacc78dc90ad8d24eaa54064ff401b541853..3a94c7bdd89fd54915579c461817ed12d5f8f63a 100644
--- a/core/modules/options/src/Plugin/views/argument/NumberListField.php
+++ b/core/modules/options/src/Plugin/views/argument/NumberListField.php
@@ -2,7 +2,6 @@
namespace Drupal\options\Plugin\views\argument;
-use Drupal\Core\Field\AllowedTagsXssTrait;
use Drupal\Core\Field\FieldFilteredMarkup;
use Drupal\Core\Form\FormStateInterface;
use Drupal\views\FieldAPIHandlerTrait;
@@ -20,7 +19,6 @@
*/
class NumberListField extends NumericArgument {
- use AllowedTagsXssTrait;
use FieldAPIHandlerTrait;
/**
diff --git a/core/modules/options/src/Plugin/views/argument/StringListField.php b/core/modules/options/src/Plugin/views/argument/StringListField.php
index 93c43a05eed840c1daa28adf52d10f398df3b812..b6642d267e8f0217d456ea18cbb9cd708503fe90 100644
--- a/core/modules/options/src/Plugin/views/argument/StringListField.php
+++ b/core/modules/options/src/Plugin/views/argument/StringListField.php
@@ -2,7 +2,6 @@
namespace Drupal\options\Plugin\views\argument;
-use Drupal\Core\Field\AllowedTagsXssTrait;
use Drupal\Core\Field\FieldFilteredMarkup;
use Drupal\Core\Form\FormStateInterface;
use Drupal\views\FieldAPIHandlerTrait;
@@ -19,7 +18,6 @@
*/
class StringListField extends StringArgument {
- use AllowedTagsXssTrait;
use FieldAPIHandlerTrait;
/**
diff --git a/core/tests/Drupal/Tests/Core/Field/AllowedTagsXssTraitDeprecateTest.php b/core/tests/Drupal/Tests/Core/Field/AllowedTagsXssTraitDeprecateTest.php
deleted file mode 100644
index d018e154c1091a2a417c86102d64a457766f5420..0000000000000000000000000000000000000000
--- a/core/tests/Drupal/Tests/Core/Field/AllowedTagsXssTraitDeprecateTest.php
+++ /dev/null
@@ -1,37 +0,0 @@
-<?php
-
-namespace Drupal\Tests\Core\Field;
-
-use Drupal\Core\Field\AllowedTagsXssTrait;
-use Drupal\Core\Field\FieldFilteredMarkup;
-use Drupal\Tests\UnitTestCase;
-
-/**
- * Tests AllowedTagsXssTrait.
- *
- * @group field
- * @group legacy
- */
-class AllowedTagsXssTraitDeprecateTest extends UnitTestCase {
-
- /**
- * @expectedDeprecation Drupal\Core\Field\AllowedTagsXssTrait::fieldFilterXss is deprecated in drupal:8.0.0 and is removed in drupal:9.0.0. Use \Drupal\Core\Field\FieldFilteredMarkup::create() instead.
- * @expectedDeprecation Drupal\Core\Field\AllowedTagsXssTrait::allowedTags is deprecated in drupal:8.0.0 and is removed in drupal:9.0.0. Use \Drupal\Core\Field\FieldFilteredMarkup::allowedTags() instead.
- * @expectedDeprecation Drupal\Core\Field\AllowedTagsXssTrait::displayAllowedTags is deprecated in drupal:8.0.0 and is removed in drupal:9.0.0. Use \Drupal\Core\Field\FieldFilteredMarkup::displayAllowedTags() instead.
- */
- public function testDeprecation() {
- $deprecated = new FieldDeprecateAllowedTagsXssTraitClass();
- $this->assertSame('Test string', (string) $deprecated->fieldFilterXss('<object>Test string</object>'));
- $this->assertSame(FieldFilteredMarkup::allowedTags(), $deprecated->allowedTags());
- $this->assertSame(FieldFilteredMarkup::displayAllowedTags(), $deprecated->displayAllowedTags());
- }
-
-}
-
-/**
- * Class FieldDeprecateAllowedTagsXssTraitClass
- */
-class FieldDeprecateAllowedTagsXssTraitClass {
- use AllowedTagsXssTrait;
-
-}