Remove unit tests in docker
Remove unit tests in docker

- This script is causing Ginkgo timeout on parallel nodes which is due to
  running out of memory in the container when we run gorouter tests with
  parallel nodes of 4. When each node tries to start/stop the gorouter they seem
  to exceed memory limit set for the container. This out of memory error or
  error137 is what causes ginkgo not ever receive a report from the aggregator
  and crash with the above error.
- The alternative is to run gorouter in a no parallel mode, however that
  takes too longs.

[#155601730]

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