ARM: clps711x: Fix bad merge of clockevents setup

I mismerged a previous branch from Alexander, and accidentally left
in ARCH_USES_GETTIMEOFFSET. Remove it.
Signed-off-by: NOlof Johansson <olof@lixom.net>
Cc: Alexander Shiyan <shc_work@mail.ru>

arch/arm/Kconfig

@@ -371,7 +371,6 @@ config ARCH_CNS3XXX
 config ARCH_CLPS711X
 	bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
 	select ARCH_REQUIRE_GPIOLIB
-	select ARCH_USES_GETTIMEOFFSET
 	select AUTO_ZRELADDR
 	select CLKDEV_LOOKUP
 	select COMMON_CLK