mfd: pmic8901: Remove pm8901_reset_power_off implementation

pm8901_reset_power_off is implemented as a part of
pm8xxx_reset_power_off (pm8xxx-misc driver).

Remove other functions (ssbi_read/ssbi_write) used only
by pm8901_reset_power_off.

Change-Id: Iad754e827061627cea55a4d6d1b7600c0cf64441
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
2 files changed