Remove EXPORTS of follow_page & zap_page_range

Delete 2 EXPORTs that were accidentally sent upstream.
Signed-off-by: NJack Steiner <steiner@sgi.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

mm/memory.c

@@ -993,7 +993,6 @@ unsigned long zap_page_range(struct vm_area_struct *vma, unsigned long address,
 		tlb_finish_mmu(tlb, address, end);
 	return end;
 }
-EXPORT_SYMBOL_GPL(zap_page_range);
 
 /**
  * zap_vma_ptes - remove ptes mapping the vma
@@ -1111,7 +1110,6 @@ struct page *follow_page(struct vm_area_struct *vma, unsigned long address,
 	}
 	return page;
 }
-EXPORT_SYMBOL_GPL(follow_page);
 
 /* Can we do the FOLL_ANON optimization? */
 static inline int use_zero_page(struct vm_area_struct *vma)