Unnecessary check in RosAriaNode::sonarConnectCb()

[ongun-kanat]

In RosAria.cpp, RosAriaNode::sonarConnectCb(), there is an unnecessary else if check in if clause

void RosAriaNode::sonarConnectCb()
{
  publish_sonar = (sonar_pub.getNumSubscribers() > 0);
  publish_sonar_pointcloud2 = (sonar_pointcloud2_pub.getNumSubscribers() > 0);
  robot->lock();
  if (publish_sonar || publish_sonar_pointcloud2)
  {
    robot->enableSonar();
    sonar_enabled = false;
  }
  else if(!publish_sonar && !publish_sonar_pointcloud2) //HERE
  {
    robot->disableSonar();
    sonar_enabled = true;
  }
  robot->unlock();
}