Cleanup.

src/main/java/de/dennisguse/opentracks/services/TrackDeleteService.java

@@ -160,6 +160,7 @@ public class TrackDeleteService extends Service {
             return this.trackId != null && this.trackId.equals(trackId);
         }
 
+        @NonNull
         @Override
         public String toString() {
             return "DeleteStatus{" +

src/main/java/de/dennisguse/opentracks/services/handlers/LocationHandler.java

@@ -172,8 +172,4 @@ class LocationHandler implements LocationListener, GpsStatus.GpsStatusListener {
     public void onGpsStatusChanged(GpsStatusValue prevStatus, GpsStatusValue currentStatus) {
         handlerServer.sendGpsStatus(currentStatus);
     }
-
-    public GpsStatusValue getGpsStatus() {
-        return gpsStatus != null ? gpsStatus.getGpsStatus() : GpsStatusValue.GPS_NONE;
-    }
 }