mm/migrate: drop pte_mkhuge() in remove_migration_pte()

mm/migrate: drop pte_mkhuge() in remove_migration_pte()

Since the following commit, arch_make_huge_pte() should be used directly
in generic memory subsystem as a platform provided page table helper,
instead of pte_mkhuge().  This just drops pte_mkhuge() from
remove_migration_pte(), which has now become redundant.

'commit 16785bd77431 ("mm: merge pte_mkhuge() call into arch_make_huge_pte()")'

Link: https://lkml.kernel.org/r/20230302025349.358341-1-anshuman.khandual@arm.com
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reported-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Link: https://lore.kernel.org/all/1ea45095-0926-a56a-a273-816709e9075e@csgroup.eu/
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>