Fix integration test that was expecting IP mbus URL in agent env
Fix integration test that was expecting IP mbus URL in agent env

[#152221686](https://www.pivotaltracker.com/story/show/152221686)

Signed-off-by: Jamil Shamy <1a6c312d8b7ebde5d54d0b4f1a4353b7c149e3bf@pivotal.io>

barthy1/bosh,barthy1/bosh,barthy1/bosh,barthy1/bosh