Remove variable module_repo
Remove variable module_repo

Previously, the module path was prepended to the module_repo.

This was moving too much logic to the jenkins script and
also slightly confusing b/c it does not work for the openstack-installer
project.

This commit removes the variable and just prepends the moduledir.

phchoic/puppet_openstack_builder,CiscoSystems/openstack-installer--to-be-replaced-by-puppet_openstack_builder,CiscoSystems/openstack-installer--to-be-replaced-by-puppet_openstack_builder,michaeltchapman/vagrant-consul,michaeltchapman/puppet_openstack_builder,phchoic/puppet_openstack_builder,michaeltchapman/puppet_openstack_builder,CiscoSystems/puppet_openstack_builder,CiscoSystems/puppet_openstack_builder--to-be-deleted,phchoic/puppet_openstack_builder,michaeltchapman/vagrant-consul,CiscoSystems/puppet_openstack_builder--to-be-deleted,CiscoSystems/puppet_openstack_builder,CiscoSystems/puppet_openstack_builder--to-be-deleted,michaeltchapman/puppet_openstack_builder,CiscoSystems/openstack-installer--to-be-replaced-by-puppet_openstack_builder