i40e: Remove unnecessary aer.h include

<linux/aer.h> is unused, so remove it.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Cc: Tony Nguyen <anthony.l.nguyen@intel.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/intel/i40e/i40e.h

@@ -10,7 +10,6 @@
 #include <linux/errno.h>
 #include <linux/module.h>
 #include <linux/pci.h>
-#include <linux/aer.h>
 #include <linux/netdevice.h>
 #include <linux/ioport.h>
 #include <linux/iommu.h>