ixgbe: Remove unused PCI bus types

The ixgbe never has as very doubtfully ever will support either
PCI or PCI-X devices.  So remove the unused types from the
ixgbe_bus_type.  Thanks to Alex Duyck for suggesting this.

Signed-off-by: Donald C Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
index 37df15f..1c5a5b3 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
@@ -3064,8 +3064,6 @@
 /* PCI bus types */
 enum ixgbe_bus_type {
 	ixgbe_bus_type_unknown = 0,
-	ixgbe_bus_type_pci,
-	ixgbe_bus_type_pcix,
 	ixgbe_bus_type_pci_express,
 	ixgbe_bus_type_internal,
 	ixgbe_bus_type_reserved