deactivate location engine when shutting down telemetry service (#638)

Author: Guardiola31337

mapbox/libandroid-telemetry/src/main/java/com/mapbox/services/android/telemetry/MapboxTelemetry.java

@@ -749,6 +749,7 @@ private void shutdownTelemetry() {
     } else {
       locationEngine.removeLocationEngineListener(this);
       locationEngine.removeLocationUpdates();
+      locationEngine.deactivate();
     }
     if (timer != null) {
       timer.cancel();