[ARM] arch/arm/kernel/bios32.c: no need to set isa_bridge

Since this assignment was the only place on !alpha where isa_bridge was
touched, it didn't have any effect.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/kernel/bios32.c

@@ -370,17 +370,6 @@ void __devinit pcibios_fixup_bus(struct pci_bus *bus)
 			features &= ~(PCI_COMMAND_SERR | PCI_COMMAND_PARITY);
 
 		switch (dev->class >> 8) {
-#if defined(CONFIG_ISA) || defined(CONFIG_EISA)
-		case PCI_CLASS_BRIDGE_ISA:
-		case PCI_CLASS_BRIDGE_EISA:
-			/*
-			 * If this device is an ISA bridge, set isa_bridge
-			 * to point at this device.  We will then go looking
-			 * for things like keyboard, etc.
-			 */
-			isa_bridge = dev;
-			break;
-#endif
 		case PCI_CLASS_BRIDGE_PCI:
 			pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &status);
 			status |= PCI_BRIDGE_CTL_PARITY|PCI_BRIDGE_CTL_MASTER_ABORT;