ARM: shmobile: Remove ARCH_HAS_OPP completely

The Kconfig symbol ARCH_HAS_OPP became redundant in v3.16: commit
049d595a ("PM / OPP: Make OPP invisible to users in Kconfig")
removed the only dependency that used it. Setting it had no effect
anymore.

So commit 78c5e0bb ("PM / OPP: Remove ARCH_HAS_OPP") removed it. For
some reason that commit did not remove all select statements for that
symbol. These statements are now useless. Remove one from shmobile too.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/mach-shmobile/Kconfig

@@ -36,7 +36,6 @@ menuconfig ARCH_SHMOBILE_MULTI
 	select NO_IOPORT_MAP
 	select PINCTRL
 	select ARCH_REQUIRE_GPIOLIB
-	select ARCH_HAS_OPP
 
 if ARCH_SHMOBILE_MULTI