sb/ti/pcixx12: Remove NOOP chip driver

Change-Id: I46bc854239e723a1685279f634e635b72e7b3af9
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51135
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

src/southbridge/ti/pcixx12/pcixx12.c

@@ -38,12 +38,3 @@ static const struct pci_driver ti_pcixx12_driver __pci_driver = {
 	.vendor = 0x104c,
 	.device = 0x8039,
 };
-
-static void southbridge_init(struct device *dev)
-{
-}
-
-struct chip_operations southbridge_ti_pcixx12_ops = {
-	CHIP_NAME("Texas Instruments PCIxx12 Cardbus Controller")
-	.enable_dev    = southbridge_init,
-};