title: Xcode Developer Tools folder is massive
body: <p>I ran out of space on my MacBook Air (128gb) so I started investigating the hard drive in order to find things I can get rid of. Obviously cleared the derived data and archives but I also found a folder I hadn't noticed before - <code>com.apple.DeveloperTools</code>and it takes 32gb (!!!!!!!!!) of space! that's crazy on a 128gb set up... Anyone knows something about this folder? Is it data that rebuilds itself once deleted? Can I do something about it?</p>
  
  <p>Seems like it contains data of old Xcode versions... </p>