arch/x86: do not explicitly clear Reserved flag in free_pagetable

arch/x86: do not explicitly clear Reserved flag in free_pagetable

In free_pagetable() we use the non-atomic version for clearing the
PageReserved bit from the page.  free_pagetable() will either call
free_reserved_page() or put_page_bootmem(), which will eventually end up
calling free_reserved_page(), and in there we already clear the
PageReserved flag.

Link: https://lkml.kernel.org/r/20240527044523.29207-1-osalvador@suse.de
Signed-off-by: Oscar Salvador <osalvador@suse.de>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>