diff --git a/core/modules/system/src/Tests/Installer/InstallerConfigDirectorySetNoDirectoryErrorTest.php b/core/modules/system/src/Tests/Installer/InstallerConfigDirectorySetNoDirectoryErrorTest.php
index dbb15be..b0e831b 100644
--- a/core/modules/system/src/Tests/Installer/InstallerConfigDirectorySetNoDirectoryErrorTest.php
+++ b/core/modules/system/src/Tests/Installer/InstallerConfigDirectorySetNoDirectoryErrorTest.php
@@ -43,9 +43,6 @@ protected function setUpSettings() {
     // screen.
   }
 
-  /**
-   * @{inheritdoc}
-   */
   protected function setUpSite() {
     // This step should not appear as we had a failure prior to the settings
     // screen.
diff --git a/core/modules/system/src/Tests/Installer/InstallerDatabaseErrorMessagesTest.php b/core/modules/system/src/Tests/Installer/InstallerDatabaseErrorMessagesTest.php
index 32829c8..21ffa58 100644
--- a/core/modules/system/src/Tests/Installer/InstallerDatabaseErrorMessagesTest.php
+++ b/core/modules/system/src/Tests/Installer/InstallerDatabaseErrorMessagesTest.php
@@ -12,9 +12,6 @@
  */
 class InstallerDatabaseErrorMessagesTest extends InstallerTestBase {
 
-  /**
-   * @{inheritdoc}
-   */
   protected function setUpSettings() {
     // We are creating a table here to force an error in the installer because
     // it will try and create the drupal_install_test table as this is part of
@@ -24,9 +21,6 @@ protected function setUpSettings() {
     parent::setUpSettings();
   }
 
-  /**
-   * @{inheritdoc}
-   */
   protected function setUpSite() {
     // This step should not appear as we had a failure on the settings screen.
   }
diff --git a/core/modules/system/src/Tests/Installer/InstallerTranslationTest.php b/core/modules/system/src/Tests/Installer/InstallerTranslationTest.php
index 330d61f..428cfc3 100644
--- a/core/modules/system/src/Tests/Installer/InstallerTranslationTest.php
+++ b/core/modules/system/src/Tests/Installer/InstallerTranslationTest.php
@@ -20,9 +20,6 @@ class InstallerTranslationTest extends InstallerTestBase {
    */
   protected $langcode = 'de';
 
-  /**
-   * {@inheritdoc}
-   */
   protected function setUpLanguage() {
     // Place a custom local translation in the translations directory.
     mkdir(\Drupal::root() . '/' . $this->siteDirectory . '/files/translations', 0777, TRUE);
@@ -41,9 +38,6 @@ protected function setUpLanguage() {
     $this->assertEqual($direction, 'ltr');
   }
 
-  /**
-   * @{inheritdoc}
-   */
   protected function setUpSettings() {
     // We are creating a table here to force an error in the installer because
     // it will try and create the drupal_install_test table as this is part of