pit: Remove the MAX_CPUS option.

The MAX_CPUS option is only used on x86 currently, so there's no reason to
have it in the pit config.

Change-Id: I270bbfd3aff781d88304791b1d9735777643caab
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3688
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

src/mainboard/google/pit/Kconfig

@@ -40,10 +40,6 @@ config MAINBOARD_PART_NUMBER
 	string
 	default "Pit"
 
-config MAX_CPUS
-	int
-	default 2
-
 config DRAM_SIZE_MB
 	int
 	default 2048