bump buildpackapplifecycle
bump buildpackapplifecycle

[finishes #src/code.cloudfoundry.org/buildpackapplifecycle]

Submodule src/code.cloudfoundry.org/buildpackapplifecycle 928cda2ee..5a0eeb8db:
  > Merge pull request #37 from cloudfoundry/remove-unused-code

cloudfoundry-incubator/diego-release,cloudfoundry-incubator/diego-release,cloudfoundry-incubator/diego-release,cloudfoundry-incubator/diego-release