igc: 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/igc/igc_main.c

@@ -4,7 +4,6 @@
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/if_vlan.h>
-#include <linux/aer.h>
 #include <linux/tcp.h>
 #include <linux/udp.h>
 #include <linux/ip.h>