powerpc: Remove arch/ppc cruft from Kconfig

Remove some leftover cruft from the arch/ppc days
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: NKumar Gala <galak@kernel.crashing.org>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/Kconfig

@@ -876,10 +876,6 @@ source "drivers/Kconfig"
 
 source "fs/Kconfig"
 
-# XXX source "arch/ppc/8xx_io/Kconfig"
-
-# XXX source "arch/ppc/8260_io/Kconfig"
-
 source "arch/powerpc/sysdev/qe_lib/Kconfig"
 
 source "lib/Kconfig"