[PATCH] x86-64: remove duplicate ARCH_DISCONTIGMEM_ENABLE option

One ARCH_DISCONTIGMEM_ENABLE option is enough.
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NAndi Kleen <ak@suse.de>

arch/x86_64/Kconfig

@@ -359,11 +359,6 @@ config ARCH_DISCONTIGMEM_ENABLE
        depends on NUMA
        default y
 
-
-config ARCH_DISCONTIGMEM_ENABLE
-	def_bool y
-	depends on NUMA
-
 config ARCH_DISCONTIGMEM_DEFAULT
 	def_bool y
 	depends on NUMA