private void deleteDeprecatedEvents(Project project, SensorContext context) {
   String version = project.getAnalysisVersion();
   for (Iterator<Event> it = context.getEvents(project).iterator(); it.hasNext(); ) {
     Event event = it.next();
     if (event.isVersionCategory() && version.equals(event.getName())) {
       it.remove();
       context.deleteEvent(event);
     }
   }
 }