mm: remove clear_page_idle()

All callers have now been converted to call folio_clear_idle().

Link: https://lkml.kernel.org/r/[e-mail]
Signed-off-by: Xueshi Hu <[e-mail]>
Reviewed-by: David Hildenbrand <[e-mail]>
Cc: Charan Teja Kalla <[e-mail]>
Cc: Michal Hocko <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>

include/linux/page_idle.h

···
 {
 	folio_set_idle(page_folio(page));
 }
-
-static inline void clear_page_idle(struct page *page)
-{
-	folio_clear_idle(page_folio(page));
-}
 #endif /* _LINUX_MM_PAGE_IDLE_H */