alpha: remove dma_sync_single_range

dma_sync_single_for_cpu/for_device supports a partial sync so there is no
point to have dma_sync_single_range (also dma_sync_single was obsoleted
long ago, replaced with dma_sync_single_for_cpu/for_device).

There is no user of dma_sync_single_range() in mainline and only Alpha
architecture supports dma_sync_single_range().  So it's unlikely that
someone out of the tree uses it.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Acked-by: Matt Turner <mattst88@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/alpha/include/asm/dma-mapping.h

@@ -59,7 +59,6 @@ int dma_set_mask(struct device *dev, u64 mask);
 
 #define dma_sync_single_for_cpu(dev, addr, size, dir)	  ((void)0)
 #define dma_sync_single_for_device(dev, addr, size, dir)  ((void)0)
-#define dma_sync_single_range(dev, addr, off, size, dir)  ((void)0)
 #define dma_sync_sg_for_cpu(dev, sg, nents, dir)	  ((void)0)
 #define dma_sync_sg_for_device(dev, sg, nents, dir)	  ((void)0)
 #define dma_cache_sync(dev, va, size, dir)		  ((void)0)