We use http://rfr.bz as our link shortener. If you don't want to use it, follow the steps below.
Warning: We don't recommend turning off our url shortener.
If you turn off the software tracking, you will have no link shorteners at all. We're looking into integrating with other link shorteners in the future.
We use this for reporting and analytics of your social posts. If you turn this feature off, we won't be able to provide you this information.
To turn it off, go to Account Preferences > Analytics Integration > Uncheck this part.