pci: Drop CONFIG_SYS_SCSI_SCAN_BUS_REVERSE

This option is not used by any board. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

drivers/pci/pci.c

@@ -175,11 +175,7 @@ pci_dev_t pci_find_devices(struct pci_device_id *ids, int index)
 	int bus;
 
 	for (hose = pci_get_hose_head(); hose; hose = hose->next) {
-#ifdef CONFIG_SYS_SCSI_SCAN_BUS_REVERSE
-		for (bus = hose->last_busno; bus >= hose->first_busno; bus--) {
-#else
 		for (bus = hose->first_busno; bus <= hose->last_busno; bus++) {
-#endif
 			bdf = pci_hose_find_devices(hose, bus, ids, &index);
 			if (bdf != -1)
 				return bdf;

include/configs/MPC8641HPCN.h

@@ -354,8 +354,6 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 
 #define CONFIG_PCI_SCAN_SHOW		/* show pci devices on startup */
 
-#undef CONFIG_SYS_SCSI_SCAN_BUS_REVERSE
-
 #define CONFIG_PCI_PNP			/* do pci plug-and-play */
 
 #undef CONFIG_EEPRO100

include/configs/sbc8641d.h

@@ -297,8 +297,6 @@
 
 #define CONFIG_PCI_SCAN_SHOW            /* show pci devices on startup */
 
-#undef CONFIG_SYS_SCSI_SCAN_BUS_REVERSE
-
 #define CONFIG_PCI_PNP			/* do pci plug-and-play */
 
 #undef CONFIG_EEPRO100