ACPI: Have single call-site for acpi_inject_nvsa()

Change-Id: I61a9b07ec3fdaeef0622df82e106405f01e89a9e
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48719
Reviewed-by: Lance Zhao
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/skylake/acpi.c

@@ -522,11 +522,6 @@ unsigned long southbridge_write_acpi_tables(const struct device *device,
 	return acpi_align_current(current);
 }
 
-void southbridge_inject_dsdt(const struct device *device)
-{
-	acpi_inject_nvsa();
-}
-
 /* Save wake source information for calculating ACPI _SWS values */
 int soc_fill_acpi_wake(uint32_t *pm1, uint32_t **gpe0)
 {