getac/p470: Drop unused PCI secondary bus reset

Change-Id: I959cdc08d43fea28f8bbc649cd46bab5656d6ca8
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35674
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

src/mainboard/getac/p470/romstage.c

@@ -237,13 +237,6 @@ void mainboard_romstage_entry(void)
 
 	enable_lapic();
 
-#if 0
-	/* Force PCIRST# */
-	pci_write_config16(PCI_DEV(0, 0x1e, 0), BCTRL, SBR);
-	udelay(200 * 1000);
-	pci_write_config16(PCI_DEV(0, 0x1e, 0), BCTRL, 0);
-#endif
-
 	ich7_enable_lpc();
 	early_superio_config();