CiviMail and CiviSMS both default to tracking click-throughs. To do so, it converts a link like `http://www.cnn.com` to something much longer, like `https://www.example.com/wp-content/plugins/civicrm/civicrm/extern/url.php?u=91701&qid=2521100`. That's fine in CiviMail, when you a) can turn it off, and b) you can hide it behind a hyperlink - but it can be really annoying in a text message. 

Since there's no "track click-throughs" checkbox when creating an SMS, how do I fix this?