ia64: remove an ifdef around the content of pci-dma.c

The file is only compiled if CONFIG_INTEL_IOMMU is set to start with.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Acked-by: NChristian König <christian.koenig@amd.com>

arch/ia64/kernel/pci-dma.c

@@ -12,12 +12,7 @@
 #include <asm/iommu.h>
 #include <asm/machvec.h>
 #include <linux/dma-mapping.h>
-
-
-#ifdef CONFIG_INTEL_IOMMU
-
 #include <linux/kernel.h>
-
 #include <asm/page.h>
 
 dma_addr_t bad_dma_address __read_mostly;
@@ -115,5 +110,3 @@ void __init pci_iommu_alloc(void)
 	}
 #endif /* CONFIG_SWIOTLB */
 }
-
-#endif