Deprecate location modes

1. Mark public fields as deprecated: LOCATION_MODE, LOCATION_MODE_HIGH_ACCURACY, LOCATION_MODE_SENSORS_ONLY,
LOCATION_MODE_BATTERY_SAVING, LOCATION_MODE_OFF.

2. Add new public  methods to LocationManager:
setLocationEnabled(boolean)
isLocationEnabled()
setLocationProviderEnabled(String, boolean)

3. Remove LOCATION_PREVIOUS_MODE and constant
LOCATION_MODE_PREVIOUS. Refactor code that references
LOCATION_MODE_PREVIOUS to use LocationManager.setLocationEnabled or
LOCATION_MODE_HIGH_ACCURACY.

4. Mark deprecated fields and methods as removed: LOCATION_PROVIDERS_ALLOWED, setLocationProviderEnabled(), isLocationProviderEnabled()

5. Refactor logic in Settings app and Quick Settings to call
LocationManager.setLocationEnabled() instead of setting location mode.

Bug: 70990911
Test: Manual
Change-Id: Ia49b385f8b6a358b62291983eb0146af0ecf8e02