linux-phytec-ti

mmc: host: omap_hsmmc: remove incorrect voltage switch sequence

ios->vdd is set only in mmc_power_up and mmc_power_off and not in
mmc_select_voltage() as mentioned in the code comment. This seems to be
legacy code that has been carried for a long time without being
tested.

This will be replaced with the correct voltage switch sequence and
populated in start_signal_voltage_switch ops to be used by mmc core
for switching voltages.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>