Remove modules submodule

We don't use it any more in lieu of some bash, and upstream is out of
date/broken anyways. The sha is also wrong after an upstream force push,
which causes git clone --recursive issues.

- Remove modules submodule from cookbooks
Merge pull request #928 from claco/remove-modules-submodule

Remove modules submodule
Auto Updating cron submodule
Auto Updating logrotate submodule
Auto Updating iptables submodule
Auto Updating iptables submodule
Auto Updating chef-client submodule
Auto Updating cron submodule
Auto Updating nova-network submodule
Auto Updating glance submodule
Auto Updating osops-utils submodule
Auto Updating nova submodule
Auto Updating nova-network submodule
Auto Updating openstack-logging submodule
Auto Updating monit submodule
Auto Updating openssh submodule
Auto Updating openstack-monitoring submodule
Auto Updating nova-network submodule
Auto Updating cron submodule
Auto Updating chef-client submodule