mmc: omap_hsmmc: remove never read power_saving field in omap2_hsmmc_info

these fields are never read, probably an unimplemented feature
or superseded by pm_runtime

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andreas Fenkart <afenkart@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --cc arch/arm/mach-omap2/board-rx51-peripherals.c
Simple merge

diff --cc arch/arm/mach-omap2/hsmmc.h
Simple merge