diff --git a/core/modules/config_translation/tests/src/Functional/ConfigTranslationUiTest.php b/core/modules/config_translation/tests/src/Functional/ConfigTranslationUiTest.php
index b17ca69875ec0b432713bce036952f3e414fbbb2..f60c0a56ee569038a45b6d5ea46fd3e0bf1d3528 100644
--- a/core/modules/config_translation/tests/src/Functional/ConfigTranslationUiTest.php
+++ b/core/modules/config_translation/tests/src/Functional/ConfigTranslationUiTest.php
@@ -1163,25 +1163,6 @@ protected function setSiteInformation($site_name, $site_slogan) {
     $this->assertSession()->pageTextContains('The configuration options have been saved.');
   }
 
-  /**
-   * Get server-rendered contextual links for the given contextual link ids.
-   *
-   * @param array $ids
-   *   An array of contextual link ids.
-   * @param string $current_path
-   *   The Drupal path for the page for which the contextual links are rendered.
-   *
-   * @return string
-   *   The response body.
-   */
-  protected function renderContextualLinks($ids, $current_path) {
-    $post = [];
-    for ($i = 0; $i < count($ids); $i++) {
-      $post['ids[' . $i . ']'] = $ids[$i];
-    }
-    return $this->drupalPostWithFormat('contextual/render', 'json', $post, ['query' => ['destination' => $current_path]]);
-  }
-
   /**
    * Asserts that a textarea with a given ID has been disabled from editing.
    *
diff --git a/core/modules/node/tests/src/Functional/NodeRevisionsTest.php b/core/modules/node/tests/src/Functional/NodeRevisionsTest.php
index f22cc669128be0edb96f0ea9dca61005bc2319c0..48e263ceaed51802960591fd6c6d88271edf16fa 100644
--- a/core/modules/node/tests/src/Functional/NodeRevisionsTest.php
+++ b/core/modules/node/tests/src/Functional/NodeRevisionsTest.php
@@ -9,7 +9,6 @@
 use Drupal\language\Entity\ConfigurableLanguage;
 use Drupal\node\Entity\Node;
 use Drupal\node\NodeInterface;
-use Drupal\Component\Serialization\Json;
 
 /**
  * Create a node with revisions and test viewing, saving, reverting, and
@@ -361,27 +360,6 @@ public function testNodeRevisionWithoutLogMessage() {
     $this->assertEmpty($node_revision->revision_log->value, 'After a new node revision is saved with an empty log message, the log message for the node is empty.');
   }
 
-  /**
-   * Gets server-rendered contextual links for the given contextual links IDs.
-   *
-   * @param string[] $ids
-   *   An array of contextual link IDs.
-   * @param string $current_path
-   *   The Drupal path for the page for which the contextual links are rendered.
-   *
-   * @return string
-   *   The decoded JSON response body.
-   */
-  protected function renderContextualLinks(array $ids, $current_path) {
-    $post = [];
-    for ($i = 0; $i < count($ids); $i++) {
-      $post['ids[' . $i . ']'] = $ids[$i];
-    }
-    $response = $this->drupalPost('contextual/render', 'application/json', $post, ['query' => ['destination' => $current_path]]);
-
-    return Json::decode($response);
-  }
-
   /**
    * Tests the revision translations are correctly reverted.
    */
diff --git a/core/phpstan-baseline.neon b/core/phpstan-baseline.neon
index af6f6c745d20eda127da778c6841f4a8054627b3..4c56f9eb244cab2c4733fa93d97daee67659f6d6 100644
--- a/core/phpstan-baseline.neon
+++ b/core/phpstan-baseline.neon
@@ -530,11 +530,6 @@ parameters:
 			count: 1
 			path: modules/config_translation/src/FormElement/DateFormat.php
 
-		-
-			message: "#^Call to an undefined method Drupal\\\\Tests\\\\config_translation\\\\Functional\\\\ConfigTranslationUiTest\\:\\:drupalPostWithFormat\\(\\)\\.$#"
-			count: 1
-			path: modules/config_translation/tests/src/Functional/ConfigTranslationUiTest.php
-
 		-
 			message: "#^Method Drupal\\\\contact\\\\ContactFormEditForm\\:\\:save\\(\\) should return int but return statement is missing\\.$#"
 			count: 1
@@ -920,11 +915,6 @@ parameters:
 			count: 1
 			path: modules/node/tests/src/Functional/NodeRevisionsAllTest.php
 
-		-
-			message: "#^Call to an undefined method Drupal\\\\Tests\\\\node\\\\Functional\\\\NodeRevisionsTest\\:\\:drupalPost\\(\\)\\.$#"
-			count: 1
-			path: modules/node/tests/src/Functional/NodeRevisionsTest.php
-
 		-
 			message: "#^Call to deprecated constant REQUEST_TIME\\: Deprecated in drupal\\:8\\.3\\.0 and is removed from drupal\\:10\\.0\\.0\\. Use \\\\Drupal\\:\\:time\\(\\)\\-\\>getRequestTime\\(\\); $#"
 			count: 1