title: Remove default code snippets in Xcode 6
body: <p>Anyone use default code snippets in Xcode?
  There are too many useless code snippets there, such that I don't even want to create my snippets there.
  So looked for answers on ST, but they did not help much. </p>
  
  <p>Is there any improvement so I can remove code snippets in Xcode 6?</p>
  
  <p>For further question, can I import or export customised snippets, so I can use them across different computers?</p>
  
  <p>Thanks a lot,</p>