 core/modules/file/src/FileUsage/FileUsageBase.php      |  8 +-------
 core/modules/file/src/Tests/FileFieldRevisionTest.php  | 16 ++++++++++++----
 core/modules/file/src/Tests/FileListingTest.php        |  3 +++
 .../file/src/Tests/FileOnTranslatedEntityTest.php      | 12 +++++++++---
 core/modules/file/src/Tests/FilePrivateTest.php        | 12 +++++++++---
 core/modules/file/tests/src/Kernel/DeleteTest.php      | 18 +++++++++++++-----
 .../image/src/Tests/ImageOnTranslatedEntityTest.php    | 12 +++++++++---
 core/modules/system/src/Form/FileSystemForm.php        | 11 -----------
 core/modules/user/src/Tests/UserPictureTest.php        |  8 ++++++--
 9 files changed, 62 insertions(+), 38 deletions(-)

diff --git a/core/modules/file/src/FileUsage/FileUsageBase.php b/core/modules/file/src/FileUsage/FileUsageBase.php
index c90359b..3fa2436 100644
--- a/core/modules/file/src/FileUsage/FileUsageBase.php
+++ b/core/modules/file/src/FileUsage/FileUsageBase.php
@@ -24,13 +24,7 @@ public function add(FileInterface $file, $module, $type, $id, $count = 1) {
    * {@inheritdoc}
    */
   public function delete(FileInterface $file, $module, $type = NULL, $id = NULL, $count = 1) {
-    // If there are no more remaining usages of this file, mark it as temporary,
-    // which result in a delete through system_cron().
-    $usage = \Drupal::service('file.usage')->listUsage($file);
-    if (empty($usage)) {
-      $file->setTemporary();
-      $file->save();
-    }
+    // @todo Fix this in https://www.drupal.org/node/2821423.
   }
 
 }
diff --git a/core/modules/file/src/Tests/FileFieldRevisionTest.php b/core/modules/file/src/Tests/FileFieldRevisionTest.php
index 7b7b4d3..53519bb 100644
--- a/core/modules/file/src/Tests/FileFieldRevisionTest.php
+++ b/core/modules/file/src/Tests/FileFieldRevisionTest.php
@@ -120,8 +120,12 @@ public function testRevisions() {
       ->execute();
     \Drupal::service('cron')->run();
 
-    $this->assertFileNotExists($node_file_r3, 'Second file is now deleted after deleting third revision, since it is no longer being used by any other nodes.');
-    $this->assertFileEntryNotExists($node_file_r3, 'Second file entry is now deleted after deleting third revision, since it is no longer being used by any other nodes.');
+    // @todo Fix this in https://www.drupal.org/node/2821423.
+    //$this->assertFileNotExists($node_file_r3, 'Second file is now deleted after deleting third revision, since it is no longer being used by any other nodes.');
+    //$this->assertFileEntryNotExists($node_file_r3, 'Second file entry is now deleted after deleting third revision, since it is no longer being used by any other nodes.');
+    $this->assertFileExists($node_file_r3);
+    $this->assertFileEntryExists($node_file_r3);
+    $this->assertFileIsPermanent($node_file_r3);
 
     // Delete the entire node and check that the original file is deleted.
     $this->drupalPostForm('node/' . $nid . '/delete', [], t('Delete'));
@@ -135,8 +139,12 @@ public function testRevisions() {
       ->condition('fid', $node_file_r1->id())
       ->execute();
     \Drupal::service('cron')->run();
-    $this->assertFileNotExists($node_file_r1, 'Original file is deleted after deleting the entire node with two revisions remaining.');
-    $this->assertFileEntryNotExists($node_file_r1, 'Original file entry is deleted after deleting the entire node with two revisions remaining.');
+    // @todo Fix this in https://www.drupal.org/node/2821423.
+    //$this->assertFileNotExists($node_file_r1, 'Original file is deleted after deleting the entire node with two revisions remaining.');
+    //$this->assertFileEntryNotExists($node_file_r1, 'Original file entry is deleted after deleting the entire node with two revisions remaining.');
+    $this->assertFileExists($node_file_r1);
+    $this->assertFileEntryExists($node_file_r1);
+    $this->assertFileIsPermanent($node_file_r1);
   }
 
 }
diff --git a/core/modules/file/src/Tests/FileListingTest.php b/core/modules/file/src/Tests/FileListingTest.php
index e348949..6594ae5 100644
--- a/core/modules/file/src/Tests/FileListingTest.php
+++ b/core/modules/file/src/Tests/FileListingTest.php
@@ -113,6 +113,8 @@ public function testFileListingPages() {
     $nodes[1]->file->target_id = $used_file;
     $nodes[1]->save();
 
+    // @todo Fix this in https://www.drupal.org/node/2821423.
+    /*
     $this->drupalGet('admin/content/files');
     $file = File::load($orphaned_file);
     $usage = $this->sumUsages($file_usage->listUsage($file));
@@ -124,6 +126,7 @@ public function testFileListingPages() {
 
     $result = $this->xpath("//td[contains(@class, 'views-field-status') and contains(text(), :value)]", [':value' => t('Temporary')]);
     $this->assertEqual(1, count($result), 'Unused file marked as temporary.');
+    */
 
     // Test file usage page.
     foreach ($nodes as $node) {
diff --git a/core/modules/file/src/Tests/FileOnTranslatedEntityTest.php b/core/modules/file/src/Tests/FileOnTranslatedEntityTest.php
index 5f1e707..b497a41 100644
--- a/core/modules/file/src/Tests/FileOnTranslatedEntityTest.php
+++ b/core/modules/file/src/Tests/FileOnTranslatedEntityTest.php
@@ -182,7 +182,9 @@ public function testSyncedFiles() {
 
     // Ensure the file status of the third file is now temporary.
     $file = File::load($third_fid);
-    $this->assertTrue($file->isTemporary());
+    // @todo Fix this in https://www.drupal.org/node/2821423.
+    //$this->assertTrue($file->isTemporary());
+    $this->assertTrue($file->isPermanent());
 
     // Delete the all translations.
     $this->drupalPostForm('node/' . $default_language_node->id() . '/delete', [], t('Delete all translations'));
@@ -191,10 +193,14 @@ public function testSyncedFiles() {
 
     // Ensure the file status of the all files are now temporary.
     $file = File::load($first_fid);
-    $this->assertTrue($file->isTemporary(), 'First file still exists and is temporary.');
+    // @todo Fix this in https://www.drupal.org/node/2821423.
+    //$this->assertTrue($file->isTemporary(), 'First file still exists and is temporary.');
+    $this->assertTrue($file->isPermanent());
 
     $file = File::load($replaced_second_fid);
-    $this->assertTrue($file->isTemporary());
+    // @todo Fix this in https://www.drupal.org/node/2821423.
+    //$this->assertTrue($file->isTemporary());
+    $this->assertTrue($file->isPermanent());
   }
 
 }
diff --git a/core/modules/file/src/Tests/FilePrivateTest.php b/core/modules/file/src/Tests/FilePrivateTest.php
index 6808a47..9f8438f 100644
--- a/core/modules/file/src/Tests/FilePrivateTest.php
+++ b/core/modules/file/src/Tests/FilePrivateTest.php
@@ -99,7 +99,9 @@ public function testPrivateFile() {
     $node->delete();
     // Ensure the file can still be downloaded by the owner.
     $this->drupalGet($file_url);
-    $this->assertResponse(200, 'Confirmed that the owner still has access to the temporary file.');
+    // @todo Fix this in https://www.drupal.org/node/2821423.
+//    $this->assertResponse(200, 'Confirmed that the owner still has access to the temporary file.');
+    $this->assertResponse(403);
 
     // Ensure the file cannot be downloaded by an anonymous user.
     $this->drupalLogout();
@@ -161,12 +163,16 @@ public function testPrivateFile() {
     $new_node->{$field_name} = [];
     $new_node->save();
     $file = File::load($file_id);
-    $this->assertTrue($file->isTemporary(), 'File is temporary.');
+    // @todo Fix this in https://www.drupal.org/node/2821423.
+//    $this->assertTrue($file->isTemporary(), 'File is temporary.');
+    $this->assertTrue($file->isPermanent());
     $usage = $this->container->get('file.usage')->listUsage($file);
     $this->assertFalse($usage, 'No file usage found.');
     $file_url = file_create_url($file->getFileUri());
     $this->drupalGet($file_url);
-    $this->assertResponse(200, 'Confirmed that the anonymous uploader has access to the file whose references were removed.');
+    // @todo Fix this in https://www.drupal.org/node/2821423.
+//    $this->assertResponse(200, 'Confirmed that the anonymous uploader has access to the file whose references were removed.');
+    $this->assertResponse(403);
     // Close the prior connection and remove the session cookie.
     $this->curlClose();
     $this->curlCookies = [];
diff --git a/core/modules/file/tests/src/Kernel/DeleteTest.php b/core/modules/file/tests/src/Kernel/DeleteTest.php
index 3b868c0..2efa886 100644
--- a/core/modules/file/tests/src/Kernel/DeleteTest.php
+++ b/core/modules/file/tests/src/Kernel/DeleteTest.php
@@ -44,12 +44,16 @@ public function testInUse() {
 
     $file_usage->delete($file, 'testing', 'test', 1);
     $usage = $file_usage->listUsage($file);
-    $this->assertFileHooksCalled(['load', 'update']);
+    // @todo Fix this in https://www.drupal.org/node/2821423.
+//    $this->assertFileHooksCalled(['load', 'update']);
+    $this->assertFileHooksCalled([]);
     $this->assertTrue(empty($usage), 'File usage data was removed.');
     $this->assertTrue(file_exists($file->getFileUri()), 'File still exists on the disk.');
     $file = File::load($file->id());
     $this->assertTrue($file, 'File still exists in the database.');
-    $this->assertTrue($file->isTemporary(), 'File is temporary.');
+    // @todo Fix this in https://www.drupal.org/node/2821423.
+//    $this->assertTrue($file->isTemporary(), 'File is temporary.');
+    $this->assertTrue($file->isPermanent());
     file_test_reset();
 
     // Call file_cron() to clean up the file. Make sure the changed timestamp
@@ -64,9 +68,13 @@ public function testInUse() {
     \Drupal::service('cron')->run();
 
     // file_cron() loads
-    $this->assertFileHooksCalled(['delete']);
-    $this->assertFalse(file_exists($file->getFileUri()), 'File has been deleted after its last usage was removed.');
-    $this->assertFalse(File::load($file->id()), 'File was removed from the database.');
+    // @todo Fix this in https://www.drupal.org/node/2821423.
+//    $this->assertFileHooksCalled(['delete']);
+//    $this->assertFalse(file_exists($file->getFileUri()), 'File has been deleted after its last usage was removed.');
+//    $this->assertFalse(File::load($file->id()), 'File was removed from the database.');
+    $this->assertFileHooksCalled([]);
+    $this->assertTrue(file_exists($file->getFileUri()));
+    $this->assertTrue(File::load($file->id()));
   }
 
 }
diff --git a/core/modules/image/src/Tests/ImageOnTranslatedEntityTest.php b/core/modules/image/src/Tests/ImageOnTranslatedEntityTest.php
index e1f70d7..2cd4ae8 100644
--- a/core/modules/image/src/Tests/ImageOnTranslatedEntityTest.php
+++ b/core/modules/image/src/Tests/ImageOnTranslatedEntityTest.php
@@ -207,7 +207,9 @@ public function testSyncedImages() {
 
     // Ensure the file status of the third file is now temporary.
     $file = File::load($third_fid);
-    $this->assertTrue($file->isTemporary());
+    // @todo Fix this in https://www.drupal.org/node/2821423.
+//    $this->assertTrue($file->isTemporary());
+    $this->assertTrue($file->isPermanent());
 
     // Delete the all translations.
     $this->drupalPostForm('node/' . $default_language_node->id() . '/delete', [], t('Delete all translations'));
@@ -216,10 +218,14 @@ public function testSyncedImages() {
 
     // Ensure the file status of the all files are now temporary.
     $file = File::load($first_fid);
-    $this->assertTrue($file->isTemporary(), 'First file still exists and is temporary.');
+    // @todo Fix this in https://www.drupal.org/node/2821423.
+//    $this->assertTrue($file->isTemporary(), 'First file still exists and is temporary.');
+    $this->assertTrue($file->isPermanent());
 
     $file = File::load($replaced_second_fid);
-    $this->assertTrue($file->isTemporary());
+    // @todo Fix this in https://www.drupal.org/node/2821423.
+//    $this->assertTrue($file->isTemporary());
+    $this->assertTrue($file->isPermanent());
   }
 
 }
diff --git a/core/modules/system/src/Form/FileSystemForm.php b/core/modules/system/src/Form/FileSystemForm.php
index ff0b792..88e7bdf 100644
--- a/core/modules/system/src/Form/FileSystemForm.php
+++ b/core/modules/system/src/Form/FileSystemForm.php
@@ -120,17 +120,6 @@ public function buildForm(array $form, FormStateInterface $form_state) {
       ];
     }
 
-    $intervals = [0, 21600, 43200, 86400, 604800, 2419200, 7776000];
-    $period = array_combine($intervals, array_map([$this->dateFormatter, 'formatInterval'], $intervals));
-    $period[0] = t('Never');
-    $form['temporary_maximum_age'] = [
-      '#type' => 'select',
-      '#title' => t('Delete orphaned files after'),
-      '#default_value' => $config->get('temporary_maximum_age'),
-      '#options' => $period,
-      '#description' => t('Orphaned files are not referenced from any content but remain in the file system and may appear in administrative listings. <strong>Warning:</strong> If enabled, orphaned files will be permanently deleted and may not be recoverable.'),
-    ];
-
     return parent::buildForm($form, $form_state);
   }
 
diff --git a/core/modules/user/src/Tests/UserPictureTest.php b/core/modules/user/src/Tests/UserPictureTest.php
index 6d546f0..eb0dd11 100644
--- a/core/modules/user/src/Tests/UserPictureTest.php
+++ b/core/modules/user/src/Tests/UserPictureTest.php
@@ -72,10 +72,14 @@ public function testCreateDeletePicture() {
     \Drupal::service('cron')->run();
 
     // Verify that the image has been deleted.
-    $this->assertFalse(File::load($file->id()), 'File was removed from the database.');
+    // @todo Fix this in https://www.drupal.org/node/2821423.
+//    $this->assertFalse(File::load($file->id()), 'File was removed from the database.');
+    $this->assertTrue(File::load($file->id()));
     // Clear out PHP's file stat cache so we see the current value.
     clearstatcache(TRUE, $file->getFileUri());
-    $this->assertFalse(is_file($file->getFileUri()), 'File was removed from the file system.');
+    // @todo Fix this in https://www.drupal.org/node/2821423.
+//    $this->assertFalse(is_file($file->getFileUri()), 'File was removed from the file system.');
+    $this->assertTrue(is_file($file->getFileUri()));
   }
 
   /**
