Remove APF configuration

Clean unused and untested code from puppet. Focus purpose of these
modules to configuring worker nodes.

Changes:
	deleted:    apf/README.md
	deleted:    apf/files/wrapper.sh
	deleted:    apf/manifests/client.pp
	deleted:    apf/manifests/init.pp
	deleted:    apf/templates/apf-grid-setup.sh.erb
	deleted:    apf/templates/factory.conf.erb
	deleted:    apf/templates/monitor.conf.erb
	deleted:    apf/templates/proxy.conf.erb
	deleted:    apf/templates/queues.conf.erb
	deleted:    apf/templates/sysconfig.erb
	modified:   gce_node/manifests/ephemeral.pp
	modified:   gce_node/manifests/init.pp
	modified:   packagerepos/manifests/yumrepos.pp