mm/damon/ops-common: remove redudnant mmu notifier call in pmdp mkold

mm/damon/ops-common: remove redudnant mmu notifier call in pmdp mkold

Currently, mmu_notifier_clear_young() is called immediately after
pmdp_clear_young_notify(), which already calls mmu_notifier_clear_young()
internally.  This results in a redundant notifier call.

Replace pmdp_clear_young_notify() with the non-notify variant to avoid the
duplicate call and make the pmdp path consistent with the corresponding
ptep_mkold() code.

Link: https://lkml.kernel.org/r/20260203095400.2465255-1-qin.yuA@h3c.com
Signed-off-by: qinyu <qin.yuA@h3c.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>