mm, meminit: remove early_page_nid_uninitialised

The helper early_page_nid_uninitialised() has been dead since commit
974a786 ("mm, page_alloc: remove MIGRATE_RESERVE") so remove the
dead code.

Link: http://lkml.kernel.org/r/1468008031-3848-2-git-send-email-mgorman@techsingularity.net
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

mm/page_alloc.c

@@ -295,14 +295,6 @@ static inline bool __meminit early_page_uninitialised(unsigned long pfn)
 	return false;
 }
 
-static inline bool early_page_nid_uninitialised(unsigned long pfn, int nid)
-{
-	if (pfn >= NODE_DATA(nid)->first_deferred_pfn)
-		return true;
-
-	return false;
-}
-
 /*
  * Returns false when the remaining initialisation should be deferred until
  * later in the boot cycle when it can be parallelised.
@@ -342,11 +334,6 @@ static inline bool early_page_uninitialised(unsigned long pfn)
 	return false;
 }
 
-static inline bool early_page_nid_uninitialised(unsigned long pfn, int nid)
-{
-	return false;
-}
-
 static inline bool update_defer_init(pg_data_t *pgdat,
 				unsigned long pfn, unsigned long zone_end,
 				unsigned long *nr_initialised)