soc/intel/xeon_sp/gnr: Remove duplicated HPET table

Both lpc.c and chip.c will create HPET table.
remove hpet_device_ops for avoiding create two HPET table.

Change-Id: I32628e98b5c1fac4b72ea3abf755b62847161bec
Signed-off-by: Lu, Pen-ChunX <pen-chunx.lu@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84326
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

src/soc/intel/xeon_sp/gnr/chip.c

@@ -9,12 +9,6 @@
 
 #include "chip.h"
 
-struct device_operations hpet_device_ops = {
-#if CONFIG(HAVE_ACPI_TABLES)
-	.write_acpi_tables  = &acpi_write_hpet,
-#endif
-};
-
 struct device_operations cpu_bus_ops = {
 	.init = mp_cpu_bus_init,
 };

src/soc/intel/xeon_sp/gnr/chipset.cb

@@ -16,6 +16,5 @@ chip soc/intel/xeon_sp/gnr
 	device domain 0 on
 		device pci 00.0 mandatory end # MMAP/VT-d
 		device gpio 0 alias ibl_gpio_communities on end # GPIO
-		device mmio 0xfed00000 on ops hpet_device_ops end # HPET
 	end
 end