mm: kmemleak: add __find_and_remove_object()

Add new __find_and_remove_object() without kmemleak_lock protect, it is in
preparation for the next patch.

Link: https://lkml.kernel.org/r/20231018102952.3339837-7-liushixin2@huawei.com


Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Patrick Wang <patrick.wang.shcn@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>