Remove EnableServiceLinks

[gecube]

Hello!

By default the enableServiceLinks is true.

kubectl explain deployment.spec.template.spec.enableServiceLinks
GROUP:      apps
KIND:       Deployment
VERSION:    v1

FIELD: enableServiceLinks <boolean>

DESCRIPTION:
    EnableServiceLinks indicates whether information about services should be
    injected into pod's environment variables, matching the syntax of Docker
    links. Optional: Defaults to true.

It means that there is a bunch of unused and unnecessary ENVs inside of containers. I am kindly asking to remove it. Or to make configurable.