Remove unused CONFIG symbol.

diff -urpN --exclude-from=/home/davej/.exclude bk-linus/arch/i386/defconfig linux-2.5/arch/i386/defconfig
@@ -1101,7 +1101,6 @@ CONFIG_USB_HIDINPUT=y
 # CONFIG_DEBUG_KERNEL is not set
 CONFIG_DEBUG_SPINLOCK_SLEEP=y
 CONFIG_FRAME_POINTER=y
-CONFIG_X86_EXTRA_IRQS=y
 CONFIG_X86_FIND_SMP_CONFIG=y
 CONFIG_X86_MPPARSE=y
 

diff -urpN --exclude-from=/home/davej/.exclude bk-linus/arch/i386/Kconfig linux-2.5/arch/i386/Kconfig
@@ -1261,11 +1261,6 @@ config FRAME_POINTER
 	  If you don't debug the kernel, you can say N, but we may not be able
 	  to solve problems without frame pointers.
 
-config X86_EXTRA_IRQS
-	bool
-	depends on X86_LOCAL_APIC || X86_VOYAGER
-	default y
-
 config X86_FIND_SMP_CONFIG
 	bool
 	depends on X86_LOCAL_APIC || X86_VOYAGER