x86: Remove dead config option X86_CPU

This isn't being referenced anywhere, and the selects done from
it can be easily done together with all the other X86 ones.

 v2: Also adjust UML's Kconfig.x86.
Signed-off-by: NJan Beulich <jbeulich@novell.com>
LKML-Reference: <4D7603DA02000078000351C1@vpn.id2.novell.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

arch/um/Kconfig.x86

@@ -10,6 +10,8 @@ endmenu
 
 config UML_X86
 	def_bool y
+	select GENERIC_FIND_FIRST_BIT
+	select GENERIC_FIND_NEXT_BIT
 
 config 64BIT
 	bool

arch/x86/Kconfig

@@ -64,6 +64,8 @@ config X86
 	select HAVE_TEXT_POKE_SMP
 	select HAVE_GENERIC_HARDIRQS
 	select HAVE_SPARSE_IRQ
+	select GENERIC_FIND_FIRST_BIT
+	select GENERIC_FIND_NEXT_BIT
 	select GENERIC_IRQ_PROBE
 	select GENERIC_PENDING_IRQ if SMP
 	select USE_GENERIC_SMP_HELPERS if SMP

arch/x86/Kconfig.cpu

@@ -294,11 +294,6 @@ config X86_GENERIC
 
 endif
 
-config X86_CPU
-	def_bool y
-	select GENERIC_FIND_FIRST_BIT
-	select GENERIC_FIND_NEXT_BIT
-
 #
 # Define implied options from the CPU selection here
 config X86_INTERNODE_CACHE_SHIFT