goldfish bus: don't call request_mem_region

This is a bug fix that has been lurking in the Google tree but not pushed
upstream.

From: Octavian Purdila <octavian.purdila@intel.com>

The memory region is already reserved in goldfish_init() during
platform init.
Signed-off-by: NOctavian Purdila <octavian.purdila@intel.com>
Signed-off-by: NJun Tian <jun.j.tian@intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/platform/goldfish/pdev_bus.c

@@ -184,11 +184,6 @@ static int goldfish_pdev_bus_probe(struct platform_device *pdev)
 	pdev_bus_addr = r->start;
 	pdev_bus_len = resource_size(r);
 
-	if (request_mem_region(pdev_bus_addr, pdev_bus_len, "goldfish")) {
-		dev_err(&pdev->dev, "unable to reserve Goldfish MMIO.\n");
-		return -EBUSY;
-	}
-
 	pdev_bus_base = ioremap(pdev_bus_addr, pdev_bus_len);
 	if (pdev_bus_base == NULL) {
 		ret = -ENOMEM;