Remove bogus duplicate CONFIG_LGUEST_GUEST entry.

It was moved to arch/x86/lguest/Kconfig, but I lost the deletion part in a
patch suffle.  My confused one-liner "fix" to turn it on is also reverted:
84f7466

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/lguest/Kconfig

@@ -2,7 +2,6 @@ config LGUEST
 	tristate "Linux hypervisor example code"
 	depends on X86_32 && EXPERIMENTAL && !X86_PAE && FUTEX && !(X86_VISWS || X86_VOYAGER)
 	select HVC_DRIVER
-	select LGUEST_GUEST
 	---help---
 	  This is a very simple module which allows you to run
 	  multiple instances of the same Linux kernel, using the
@@ -11,9 +10,3 @@ config LGUEST
 	  not "rustyvisor".  See Documentation/lguest/lguest.txt.
 
 	  If unsure, say N.  If curious, say M.  If masochistic, say Y.
-
-config LGUEST_GUEST
-	bool
-	help
-	  The guest needs code built-in, even if the host has lguest
-	  support as a module.