mm/memory-failure: don't select MEMORY_ISOLATION

We added that "select MEMORY_ISOLATION" in commit ee6f509c3274 ("mm:
factor out memory isolate functions"). However, in commit add05cecef80
("mm: soft-offline: don't free target page in successful page migration")
we remove the need for it, where we removed the calls to
set_migratetype_isolate() etc.

What CONFIG_MEMORY_FAILURE soft-offline support wants is migrate_pages()
support. But that comes with CONFIG_MIGRATION. And
isolate_folio_to_list() has nothing to do with CONFIG_MEMORY_ISOLATION.

Therefore, we can remove "select MEMORY_ISOLATION" of MEMORY_FAILURE.

Link: https://lkml.kernel.org/r/20250922143618.48640-1-xieyuanbin1@huawei.com
Signed-off-by: Xie Yuanbin <xieyuanbin1@huawei.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Acked-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Naoya Horiguchi <nao.horiguchi@gmail.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>