Drop CRI/CNI configurability from openshift-sdn

[danwinship]

We only support CRI-O now, so drop the HostPort stuff that was needed with dockershim

[dcbw]

/lgtm

[danwinship]

@dcbw: updated; We are currently hardcoding the container-runtime-endpoint in the config generated by cluster-network-operator to a constant value. It would simplify things to hardcode it in openshift-sdn instead. (Even if we did want to be able to support other runtimes, the configuration for that would need to be applied to the kubelet as well, so cluster-network-operator is still the wrong place to be getting that information from.)

Similarly, cluster-network-operator doesn't override the CNI-related values, so there's no reason to worry about getting overrides from there.

[danwinship]

/retest

[dcbw]

/lgtm

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: danwinship, dcbw

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• pkg/cmd/openshift-sdn/OWNERS [danwinship,dcbw]
• pkg/network/OWNERS [danwinship,dcbw]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment