MFamd64 r189785   Update the pmap's resident page count when a page table page is freed in   pmap_remove_pde() and pmap_remove_pages().
MFamd64 r189785
  Update the pmap's resident page count when a page table page is freed in
  pmap_remove_pde() and pmap_remove_pages().

MFC after:	6 weeks

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