Media: Prevent Multisite fatal error in legacy file rewrites.

Removes a call to the `is_super_admin()` function in `ms-files.php` as the function isn't available when using the `SHORTINIT` feature, causing fatal errors on systems using file rewrites.

Reverts [59967].

Props audrasjb, desrosj, jeremyfelt, johnjamesjacoby, jorbin, presskopp, verygoode, dd32, joemcgill.
See #36803.
Fixes #63285.


git-svn-id: https://develop.svn.wordpress.org/trunk@60170 602fd350-edb4-49c9-b593-d223f7449a82

Author: peterwilsoncc

src/wp-includes/ms-files.php

@@ -20,7 +20,7 @@
 
 ms_file_constants();
 
-if ( ! is_super_admin() && ( '1' === $current_blog->archived || '1' === $current_blog->spam || '1' === $current_blog->deleted ) ) {
+if ( '1' === $current_blog->archived || '1' === $current_blog->spam || '1' === $current_blog->deleted ) {
 	status_header( 404 );
 	die( '404 — File not found.' );
 }