Issue #2079981 by mrsinguyen: Remove Unused local variable from...

Issue #2079981 by mrsinguyen: Remove Unused local variable  from /core/modules/node/lib/Drupal/node/Tests/Views/StatusExtraTest.php.

core/modules/node/lib/Drupal/node/Tests/Views/StatusExtraTest.php

@@ -33,7 +33,6 @@ public static function getInfo() {
    * Tests the status extra filter.
    */
   public function testStatusExtra() {
-    $column_map = array('nid' => 'nid');
     $node_author = $this->drupalCreateUser(array('view own unpublished content'));
     $node_author_not_unpublished = $this->drupalCreateUser();
     $normal_user = $this->drupalCreateUser();