USB: remove obsolete config in kernel source (USB_HCD_DMA)

The configuration Option USB_HCD_DMA is not reachable in KConfig so
this piece of Code is effectively dead and useless. Remove it to avoid
confusion.
Signed-off-by: NChristoph Egger <siccegge@stud.informatik.uni-erlangen.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/usb/host/isp1362-hcd.c

@@ -2719,24 +2719,11 @@ static int __init isp1362_probe(struct platform_device *pdev)
 	}
 	irq = irq_res->start;
 
-#ifdef CONFIG_USB_HCD_DMA
-	if (pdev->dev.dma_mask) {
-		struct resource *dma_res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
-
-		if (!dma_res) {
-			retval = -ENODEV;
-			goto err1;
-		}
-		isp1362_hcd->data_dma = dma_res->start;
-		isp1362_hcd->max_dma_size = resource_len(dma_res);
-	}
-#else
 	if (pdev->dev.dma_mask) {
 		DBG(1, "won't do DMA");
 		retval = -ENODEV;
 		goto err1;
 	}
-#endif
 
 	if (!request_mem_region(addr->start, resource_len(addr), hcd_name)) {
 		retval = -EBUSY;