Revert "Bump src/github.com/cloudfoundry-incubator/routing-api"
Revert "Bump src/github.com/cloudfoundry-incubator/routing-api"

This reverts commit a6eb2a48ce4b244e8faed34b4517fc7aef877cda.

cloudfoundry-incubator/cf-routing-release,cloudfoundry-incubator/cf-routing-release,cloudfoundry-incubator/cf-routing-release