Remove message "Your vote has been recorded."

I am using custom PHP code to display a custom message, depending on if the logged-in user has already voted or not:

if (arg(0) == 'node' && is_numeric(arg(1)) && ! arg(2)) {
  global $user;
  $uid = $user->uid;
  $nid = arg(1);
  $vote_count = 0;
  $vote_count = db_result(db_query('SELECT COUNT(*) FROM {votingapi_vote} WHERE content_id = %d AND uid = %d', $nid, $uid));
  if ($vote_count < 1) {
    print 'Please select your preferred candidate!';
  } else {
    print 'You have already voted. You can view the results once the voting has been closed.';
  }
  
}

However, the module also outputs a hard coded message "Your vote has been recorded." on submitted nodes. This is disturbing and should be removable.