REST API: Remove errant annotation from `test_get_items_pagination_headers()` method.

Removes the debugging group notation left in the `WP_Test_REST_Users_Controller` and `WP_Test_REST_Posts_Controller` classes pagination headers method. Introduced in [38832].

Props sanket.parmar.
Fixes #39398.


git-svn-id: https://develop.svn.wordpress.org/trunk@39643 602fd350-edb4-49c9-b593-d223f7449a82

tests/phpunit/tests/rest-api/rest-posts-controller.php

@@ -723,9 +723,6 @@ class WP_Test_REST_Posts_Controller extends WP_Test_REST_Post_Type_Controller_Te
 		$this->assertEquals( $id1, $post['id'] );
 	}
 
-	/**
-	 * @group test
-	 */
 	public function test_get_items_pagination_headers() {
 		// Start of the index
 		for ( $i = 0; $i < 49; $i++ ) {

tests/phpunit/tests/rest-api/rest-users-controller.php

@@ -167,9 +167,6 @@ class WP_Test_REST_Users_Controller extends WP_Test_REST_Controller_Testcase {
 		}
 	}
 
-	/**
-	 * @group test
-	 */
 	public function test_get_items_pagination_headers() {
 		wp_set_current_user( self::$user );
 		// Start of the index, including the three existing users