title: Remove user location annotation from mapView
body: <p>I have to remove all the annotations added to my MKMapView but when I execute :</p>
  
  <pre><code>NSMutableArray *annotationsToRemove = [[NSMutableArray alloc] initWithArray: mapView.annotations];
  [mapView removeAnnotations: annotationsToRemove];
  </code></pre>
  
  <p>The array annotationsToRemove contains a <code>MKUserLocation</code> annotation and it doesn't delete it.</p>
  
  <p>Is there a way to reset the map? I need to delete all the annotations from it!</p>