Issue #3146492 by sharma.amitt16, paulocs, ultrabob: Remove unused variables in media module

core/modules/media/tests/src/FunctionalJavascript/CKEditorIntegrationTest.php

@@ -1106,7 +1106,7 @@ public function testAlignment() {
     $this->assignNameToCkeditorIframe();
     $this->getSession()->switchToIFrame('ckeditor');
     // Wait for preview to load.
-    $this->assertNotEmpty($img = $assert_session->waitForElement('css', 'drupal-media img'));
+    $this->assertNotEmpty($assert_session->waitForElement('css', 'drupal-media img'));
     // Assert the drupal-media element starts without a data-align attribute.
     $drupal_media = $assert_session->elementExists('css', 'drupal-media');
     $this->assertFalse($drupal_media->hasAttribute('data-align'));
@@ -1122,7 +1122,7 @@ public function testAlignment() {
     foreach ($alignments as $alignment) {
       $this->fillFieldInMetadataDialogAndSubmit('attributes[data-align]', $alignment);
       // Wait for preview to load.
-      $this->assertNotEmpty($img = $assert_session->waitForElement('css', 'drupal-media img'));
+      $this->assertNotEmpty($assert_session->waitForElement('css', 'drupal-media img'));
       // Now verify the result. Assert the first element within the
       // <drupal-media> element has the alignment class.
       $selector = sprintf('drupal-media[data-align="%s"] .caption-drupal-media.align-%s', $alignment, $alignment);

core/modules/media/tests/src/Kernel/MediaEmbedFilterTestBase.php

@@ -82,7 +82,7 @@ protected function setUp() {
 
     // Create a user with required permissions. Ensure that we don't use user 1
     // because that user is treated in special ways by access control handlers.
-    $admin_user = $this->drupalCreateUser([]);
+    $this->drupalCreateUser([]);
     $user = $this->drupalCreateUser([
       'access content',
       'view media',