Remove Google Code

Remove Google Code from the list of hosting providers, because it doesn't do that any more

Author: owen-jones-gen

book/05-distributed-git/sections/contributing.asc

@@ -488,7 +488,7 @@ image::images/managed-team-flow.png[Basic sequence of this managed-team workflow
 Contributing to public projects is a bit different.
 Because you don't have the permissions to directly update branches on the project, you have to get the work to the maintainers some other way.
 This first example describes contributing via forking on Git hosts that support easy forking.
-Many hosting sites support this (including GitHub, BitBucket, Google Code, repo.or.cz, and others), and many project maintainers expect this style of contribution.
+Many hosting sites support this (including GitHub, BitBucket, repo.or.cz, and others), and many project maintainers expect this style of contribution.
 The next section deals with projects that prefer to accept contributed patches via email.
 
 First, you'll probably want to clone the main repository, create a topic branch for the patch or patch series you're planning to contribute, and do your work there.