Clean up deployments before cleaning up director
Clean up deployments before cleaning up director

[#145308231](https://www.pivotaltracker.com/story/show/145308231)

Signed-off-by: Zak Auerbach <84a275e6a279738f2aa78daf0002615dee69cc28@pivotal.io>

cloudfoundry-incubator/bosh-aws-cpi-release,cloudfoundry-incubator/bosh-aws-cpi-release,cloudfoundry-incubator/bosh-aws-cpi-release