[PATCH] Remove pci_dac_set_dma_mask() from Documentation/DMA-mapping.txt

pci_dac_set_dma_mask() gives only a single match in the whole kernel tree
and that's in this doc file.  The best candidate for replacement is
pci_dac_dma_supported().

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Cc: Greg KH <greg@kroah.com>
Acked-by: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>