Merge "Remove string power_charging_duration_short" into oc-mr1-dev

    <string name="power_charging"><xliff:g id="level">%1$s</xliff:g> - <xliff:g id="state">%2$s</xliff:g></string>

    <!-- [CHAR_LIMIT=40] Label for battery level chart when charging with duration -->

    <string name="power_charging_duration"><xliff:g id="level">^1</xliff:g> - <xliff:g id="time">^2</xliff:g> until fully charged</string>

    <!-- [CHAR_LIMIT=40] Short label for battery level chart when charging with duration -->

    <string name="power_charging_duration_short"><xliff:g id="level">^1</xliff:g> - <xliff:g id="time">^2</xliff:g></string>

    <!-- Battery Info screen. Value for a status item.  Used for diagnostic info screens, precise translation isn't needed -->

    <string name="battery_info_status_unknown">Unknown</string>