remove datadog firehoze nozzle
remove datadog firehoze nozzle

We removed the datadog nozzle from toque, pickelhelm, and mitre.
We don't believe that anyone uses these and they were constantly failing to deploy.

Co-authored-by: Eli Wrenn <0a41924cabfa000cd7baec4cd10fadeb2f8e7ed3@pivotal.io>

cloudfoundry-incubator/cf-networking-release,cloudfoundry-incubator/cf-networking-release,cloudfoundry-incubator/cf-networking-release,cloudfoundry-incubator/cf-networking-release