nvme-pci: drop redundant pci_enable_pcie_error_reporting()

pci_enable_pcie_error_reporting() enables the device to send ERR_*
Messages.  Since f26e58bf ("PCI/AER: Enable error reporting when AER is
native"), the PCI core does this for all devices during enumeration, so the
driver doesn't need to do it itself.

Remove the redundant pci_enable_pcie_error_reporting() call from the
driver.  Also remove the corresponding pci_disable_pcie_error_reporting()
from the driver .remove() path.

Note that this only controls ERR_* Messages from the device.  An ERR_*
Message may cause the Root Port to generate an interrupt, depending on the
AER Root Error Command register managed by the AER service driver.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

drivers/nvme/host/pci.c

@@ -5,7 +5,6 @@
  */
 
 #include <linux/acpi.h>
-#include <linux/aer.h>
 #include <linux/async.h>
 #include <linux/blkdev.h>
 #include <linux/blk-mq.h>
@@ -2535,7 +2534,6 @@ static int nvme_pci_enable(struct nvme_dev *dev)
 
 	nvme_map_cmb(dev);
 
-	pci_enable_pcie_error_reporting(pdev);
 	pci_save_state(pdev);
 
 	result = nvme_pci_configure_admin_queue(dev);
@@ -2600,10 +2598,8 @@ static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown)
 	nvme_suspend_io_queues(dev);
 	nvme_suspend_queue(dev, 0);
 	pci_free_irq_vectors(pdev);
-	if (pci_is_enabled(pdev)) {
-		pci_disable_pcie_error_reporting(pdev);
+	if (pci_is_enabled(pdev))
 		pci_disable_device(pdev);
-	}
 	nvme_reap_pending_cqes(dev);
 
 	nvme_cancel_tagset(&dev->ctrl);