Revert "add boxen/puppet-kindle to install kindle app"

This reverts commit 8e486f2034ad0c060ab9567fb48e3675cf4eeb8f.
It appears to be broken for 10.9.5
http://www.amazon.com/forum/kindle?_encoding=UTF8&cdForum=Fx1D7SY3BVSESG&cdThread=TxSXNQQGFZEWT8