As cited in
https://github.com/kubernetes/dns/issues/174 - this is documented to
work, and I don't see why it shouldn't work. We allowed the definition
of headless services without ports, but apparently nobody tested it very
well.
Manually tested clusterIP services with no ports - validation error.
Manually tested services with negative ports - validation error.
New tests failed, output inspected and verified. Now pass.
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
remove dead code in pkg/api
**What this PR does / why we need it**:
remove dead code
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 39284, 39367)
Remove HostRecord annotation (beta feature)
The annotation has made it to GA so this code should be deleted.
**Release note**:
```release-note
The 'endpoints.beta.kubernetes.io/hostnames-map' annotation is no longer supported. Users can use the 'Endpoints.subsets[].addresses[].hostname' field instead.
```