beta: do not use git-deploy

misc::deployment::scripts is really meant to install git-deploy when we
want to rely on scap.  Bastion already includes
misc::deployment::scap-scripts so we ended up with a conflict:

 Duplicate definition: Class[Misc::Deployment::Vars] is already defined;
cannot redefine at /etc/puppet/manifests/misc/deployment.pp:164

Change-Id: If38a730f1aaa8ba66e693ed63a6e69e098ef71ff