mm: remove unmap_and_put_page()

There are no callers of unmap_and_put_page() left. Remove it.

Link: https://lkml.kernel.org/r/20250709194017.927978-6-vishal.moola@gmail.com


Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Jordan Rome <linux@jordanrome.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>