remove go-import meta tag from haml file

app/views/layouts/_head.html.haml

 %head
   %meta{charset: "utf-8"}
-
-  -# Go repository retrieval support
-  -# Need to be the fist thing in the head
-  -# Since Go is using an XML parser to process HTML5
-  -# https://github.com/gitlabhq/gitlabhq/pull/5958#issuecomment-45397555
-  - if controller_name == 'projects' && action_name == 'show'
-    %meta{name: "go-import", content: "#{@project.web_url_without_protocol} git #{@project.web_url}.git"}
   %meta{content: "GitLab Community Edition", name: "description"}
 
   %title