Upload: Remove redundant check for ABSPATH in wp-admin/async-upload.php.

This aims to bring consistency with a similar fragment in other files, since relocating `wp-admin` or `wp-load.php` is not supported at this time.

Follow-up to [6659], [7971], [8315].

Props hussain896, swissspidy, knutsp, SergeyBiryukov.
Fixes #62809.

git-svn-id: https://develop.svn.wordpress.org/trunk@59634 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/admin-post.php

@@ -13,11 +13,8 @@ if ( ! defined( 'WP_ADMIN' ) ) {
 	define( 'WP_ADMIN', true );
 }
 
-if ( defined( 'ABSPATH' ) ) {
-	require_once ABSPATH . 'wp-load.php';
-} else {
-	require_once dirname( __DIR__ ) . '/wp-load.php';
-}
+/** Load WordPress Bootstrap */
+require_once dirname( __DIR__ ) . '/wp-load.php';
 
 /** Allow for cross-domain requests (from the front end). */
 send_origin_headers();

src/wp-admin/admin.php

@@ -31,6 +31,7 @@ if ( isset( $_GET['import'] ) && ! defined( 'WP_LOAD_IMPORTERS' ) ) {
 	define( 'WP_LOAD_IMPORTERS', true );
 }
 
+/** Load WordPress Bootstrap */
 require_once dirname( __DIR__ ) . '/wp-load.php';
 
 nocache_headers();

src/wp-admin/async-upload.php

@@ -14,11 +14,8 @@ if ( ! defined( 'WP_ADMIN' ) ) {
 	define( 'WP_ADMIN', true );
 }
 
-if ( defined( 'ABSPATH' ) ) {
-	require_once ABSPATH . 'wp-load.php';
-} else {
-	require_once dirname( __DIR__ ) . '/wp-load.php';
-}
+/** Load WordPress Bootstrap */
+require_once dirname( __DIR__ ) . '/wp-load.php';
 
 require_once ABSPATH . 'wp-admin/admin.php';
 

src/wp-includes/ms-files.php

@@ -10,6 +10,8 @@
 
 define( 'MS_FILES_REQUEST', true );
 define( 'SHORTINIT', true );
+
+/** Load WordPress Bootstrap */
 require_once dirname( __DIR__ ) . '/wp-load.php';
 
 if ( ! is_multisite() ) {