Remove custom gateway code for statsd configuration.
Remove custom gateway code for statsd configuration.

This code was required for Deis v1 deployments so find the statsd host to send
the metrics to. With kubernetes we use a service and this doesn't work anymore.

glogiotatidis/snippets-service,mozilla/snippets-service,glogiotatidis/snippets-service,glogiotatidis/snippets-service,mozilla/snippets-service,mozmar/snippets-service,mozmar/snippets-service,mozilla/snippets-service,mozmar/snippets-service,mozmar/snippets-service,mozilla/snippets-service,glogiotatidis/snippets-service