remove closure-templates-src, i'm going to do this with git subtrees instead

Hello @nicks, 

Please review the following commits I made in branch 'nick-src'.

2faa70dbe9af5f19f0721008ebbea54c595e4df7 (2014-08-14 18:06:40 -0400)
remove closure-templates-src, i'm going to do this with git subtrees instead

R=@nicks