Some headers that 'reclaim.c' and 'lru_sort.c' are including are
unnecessary now owing to previous cleanups and refactorings.  Remove
those.

Link: https://lkml.kernel.org/r/20221026225943.100429-13-sj@kernel.orgSigned-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>