initializers: remove newrelic old way of loading
initializers: remove newrelic old way of loading

This should be done now through a custom Gemfile on config/.
Check 52bb8ba.

evandrojr/noosferogov,evandrojr/noosferogov,evandrojr/noosferogov,evandrojr/noosferogov,evandrojr/noosferogov,evandrojr/noosferogov,evandrojr/noosferogov