diff --git a/core/modules/image/tests/src/FunctionalJavascript/QuickEditImageTest.php b/core/modules/image/tests/src/FunctionalJavascript/QuickEditImageTest.php
index e810b7ffff5..b9cf6196561 100644
--- a/core/modules/image/tests/src/FunctionalJavascript/QuickEditImageTest.php
+++ b/core/modules/image/tests/src/FunctionalJavascript/QuickEditImageTest.php
@@ -34,15 +34,6 @@ class QuickEditImageTest extends QuickEditJavascriptTestBase {
    */
   protected $contentAuthorUser;
 
-  /**
-   * CSS animations must be enabled for PopperJS positioning to work properly.
-   *
-   * @var bool
-   *
-   * @todo revisit in http://drupal.org/node/3082602
-   */
-  protected $disableCssAnimations = FALSE;
-
   /**
    * {@inheritdoc}
    */
diff --git a/core/modules/quickedit/tests/src/FunctionalJavascript/QuickEditFileTest.php b/core/modules/quickedit/tests/src/FunctionalJavascript/QuickEditFileTest.php
index 8def334f422..f6a12e36073 100644
--- a/core/modules/quickedit/tests/src/FunctionalJavascript/QuickEditFileTest.php
+++ b/core/modules/quickedit/tests/src/FunctionalJavascript/QuickEditFileTest.php
@@ -28,15 +28,6 @@ class QuickEditFileTest extends QuickEditJavascriptTestBase {
    */
   protected $defaultTheme = 'stark';
 
-  /**
-   * CSS animations must be enabled for PopperJS positioning to work properly.
-   *
-   * @var bool
-   *
-   * @todo revisit in http://drupal.org/node/3082602
-   */
-  protected $disableCssAnimations = FALSE;
-
   /**
    * {@inheritdoc}
    */
diff --git a/core/modules/quickedit/tests/src/FunctionalJavascript/QuickEditIntegrationTest.php b/core/modules/quickedit/tests/src/FunctionalJavascript/QuickEditIntegrationTest.php
index e00abf5a393..07e88b89c2a 100644
--- a/core/modules/quickedit/tests/src/FunctionalJavascript/QuickEditIntegrationTest.php
+++ b/core/modules/quickedit/tests/src/FunctionalJavascript/QuickEditIntegrationTest.php
@@ -43,15 +43,6 @@ class QuickEditIntegrationTest extends QuickEditJavascriptTestBase {
    */
   protected $contentAuthorUser;
 
-  /**
-   * CSS animations must be enabled for PopperJS positioning to work properly.
-   *
-   * @var bool
-   *
-   * @todo revisit in http://drupal.org/node/3082602
-   */
-  protected $disableCssAnimations = FALSE;
-
   /**
    * {@inheritdoc}
    */
diff --git a/core/modules/quickedit/tests/src/FunctionalJavascript/QuickEditLoadingTest.php b/core/modules/quickedit/tests/src/FunctionalJavascript/QuickEditLoadingTest.php
index 5668c3592e0..7bc1f3b5470 100644
--- a/core/modules/quickedit/tests/src/FunctionalJavascript/QuickEditLoadingTest.php
+++ b/core/modules/quickedit/tests/src/FunctionalJavascript/QuickEditLoadingTest.php
@@ -67,15 +67,6 @@ class QuickEditLoadingTest extends WebDriverTestBase {
    */
   protected $editorUser;
 
-  /**
-   * CSS animations must be enabled for PopperJS positioning to work properly.
-   *
-   * @var bool
-   *
-   * @todo revisit in http://drupal.org/node/3082602
-   */
-  protected $disableCssAnimations = FALSE;
-
   /**
    * {@inheritdoc}
    */
diff --git a/core/modules/system/tests/modules/css_disable_transitions_test/css/disable_transitions.theme.css b/core/modules/system/tests/modules/css_disable_transitions_test/css/disable_transitions.theme.css
index 55221fa99bd..ff5df76ba18 100644
--- a/core/modules/system/tests/modules/css_disable_transitions_test/css/disable_transitions.theme.css
+++ b/core/modules/system/tests/modules/css_disable_transitions_test/css/disable_transitions.theme.css
@@ -13,12 +13,6 @@
   -ms-transition-property: none !important;
   -webkit-transition-property: none !important;
   transition-property: none !important;
-  /* CSS transforms. */
-  -o-transform: none !important;
-  -moz-transform: none !important;
-  -ms-transform: none !important;
-  -webkit-transform: none !important;
-  transform: none !important;
   /* CSS animations. */
   -webkit-animation: none !important;
   -moz-animation: none !important;