reverts #989

free-courses-en.md

 ###Index
 * [C++](#c)
 * [Databases](#databases)
-* [Go](#go)
 * [Haskell](#haskell)
 * [HTML / CSS](#html--css)
 * [iOS](#ios)
@@ -22,8 +21,6 @@
 * [Database Systems](http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-830-database-systems-fall-2010/) (MIT's opencourseware)
 * [Introduction to Databases](https://class.stanford.edu/courses/Engineering/db/2014_1/about) (Stanford University)
 
-###Go
-* [An Introduction to Programming in Go](http://www.golang-book.com/)
 
 ###Haskell
 * [CIS 194: Introduction to Haskell](http://www.seas.upenn.edu/~cis194/) - Brent Yorgey