nb/intel/haswell: Consolidate memory controller PCI driver structs

Since the `PCI_DEVICE_ID_HSW_*` constants are no longer used, remove
them.

Change-Id: I84f1f069faa6a4165cf289f2e6c40889a49cad1d
Signed-off-by: Tristan Corrick <tristan@corrick.kiwi>
Reviewed-on: https://review.coreboot.org/29396
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

src/northbridge/intel/haswell/haswell.h

@@ -210,10 +210,6 @@ struct ied_header {
 	u8 reserved[34];
 } __packed;
 
-#define PCI_DEVICE_ID_HSW_DESKTOP 0x0c00
-#define PCI_DEVICE_ID_HSW_MOBILE 0x0c04
-#define PCI_DEVICE_ID_HSW_ULT 0x0a04
-
 #ifdef __SMM__
 void intel_northbridge_haswell_finalize_smm(void);
 #else /* !__SMM__ */