x86, 386 removal: Remove CONFIG_M386 from Kconfig

Remove the CONFIG_M386 symbol from Kconfig so that it cannot be
selected.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/1354132230-21854-2-git-send-email-hpa@linux.intel.com
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index ad1fc85..9a4ee46 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -672,7 +672,7 @@
 {
 	int tmp;
 
-#if defined(CONFIG_M386) || defined(CONFIG_M486)
+#ifdef CONFIG_M486
 	if (boot_cpu_data.x86 < 5)
 		/* There is no speculative execution.
 		 * jmp is a barrier to prefetching. */