diff --git a/core/modules/system/src/Tests/Extension/InfoParserUnitTest.php b/core/modules/system/src/Tests/Extension/InfoParserUnitTest.php
deleted file mode 100644
index 4c30c71..0000000
--- a/core/modules/system/src/Tests/Extension/InfoParserUnitTest.php
+++ /dev/null
@@ -1,87 +0,0 @@
-<?php
-
-/**
- * @file
- * Contains \Drupal\system\Tests\Extension\InfoParserUnitTest.
- */
-
-namespace Drupal\system\Tests\Extension;
-
-use Drupal\simpletest\KernelTestBase;
-use Drupal\Core\Extension\InfoParser;
-use Drupal\Core\Extension\InfoParserException;
-
-/**
- * Tests InfoParser class and exception.
- *
- * Files for this test are stored in core/modules/system/tests/fixtures and end
- * with .info.txt instead of info.yml in order not not be considered as real
- * extensions.
- *
- * @group Extension
- */
-class InfoParserUnitTest extends KernelTestBase {
-
-  /**
-   * The InfoParser object.
-   *
-   * @var \Drupal\Core\Extension\InfoParser
-   */
-  protected $infoParser;
-
-  /**
-   * {@inheritdoc}
-   */
-  protected function setUp() {
-    parent::setUp();
-
-    $this->infoParser = new InfoParser();
-  }
-
-  /**
-   * Tests the functionality of the infoParser object.
-   */
-  public function testInfoParser() {
-    $info = $this->infoParser->parse('core/modules/system/tests/fixtures/does_not_exist.info.txt');
-    $this->assertTrue(empty($info), 'Non existing info.yml returns empty array.');
-
-    // Test that invalid YAML throws an exception and that message contains the
-    // filename that caused it.
-    $filename = 'core/modules/system/tests/fixtures/broken.info.txt';
-    try {
-      $this->infoParser->parse($filename);
-      $this->fail('Expected InfoParserException not thrown when reading broken.info.txt');
-    }
-    catch (InfoParserException $e) {
-      $this->assertTrue(strpos($e->getMessage(), $filename) !== FALSE, 'Exception message contains info.yml filename.');
-    }
-
-    // Tests that missing required keys are detected.
-    $filename = 'core/modules/system/tests/fixtures/missing_keys.info.txt';
-    try {
-      $this->infoParser->parse($filename);
-      $this->fail('Expected InfoParserException not thrown when reading missing_keys.info.txt');
-    }
-    catch (InfoParserException $e) {
-      $expected_message = "Missing required keys (type, core, name) in $filename.";
-      $this->assertEqual($e->getMessage(), $expected_message);
-    }
-
-    // Tests that a single missing required key is detected.
-    $filename = 'core/modules/system/tests/fixtures/missing_key.info.txt';
-    try {
-      $this->infoParser->parse($filename);
-      $this->fail('Expected InfoParserException not thrown when reading missing_key.info.txt');
-    }
-    catch (InfoParserException $e) {
-      $expected_message = "Missing required keys (type) in $filename.";
-      $this->assertEqual($e->getMessage(), $expected_message);
-    }
-
-    $info_values = $this->infoParser->parse('core/modules/system/tests/fixtures/common_test.info.txt');
-    $this->assertEqual($info_values['simple_string'], 'A simple string', 'Simple string value was parsed correctly.', 'System');
-    $this->assertEqual($info_values['version'], \Drupal::VERSION, 'Constant value was parsed correctly.', 'System');
-    $this->assertEqual($info_values['double_colon'], 'dummyClassName::foo', 'Value containing double-colon was parsed correctly.', 'System');
-  }
-
-}
diff --git a/core/modules/system/tests/fixtures/common_test.info.txt b/core/modules/system/tests/fixtures/common_test.info.txt
deleted file mode 100644
index ff535b1..0000000
--- a/core/modules/system/tests/fixtures/common_test.info.txt
+++ /dev/null
@@ -1,7 +0,0 @@
-core: 8.x
-name: common_test
-type: module
-description: 'testing info file parsing'
-simple_string: 'A simple string'
-version: "VERSION"
-double_colon: dummyClassName::foo