Remove extraneous CHANGELOGS on the 1.10 branch.

[david-mcmahon]

What this PR does / why we need it:

Initial change on a new branch so we can tag a commit that doesn't exist on master.

This normally happens during the course of a release, automatically via anago. This provides an opportunity here to fix the issue at branch time, described in detail below.

ref kubernetes/sig-release#85

[k8s-ci-robot]

@david-mcmahon: Adding do-not-merge/release-note-label-needed because the release note process has not been followed.

One of the following labels is required "release-note", "release-note-action-required", or "release-note-none".
Please see: https://git.k8s.io/community/contributors/devel/pull-requests.md#write-release-notes-if-needed.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[enisoc]

LGTM but I'll defer to @calebamiles to add the lgtm label.

[calebamiles]

/lgtm

[calebamiles]

/retest

[calebamiles]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

Approval requirements bypassed by manually added approval.

This pull-request has been approved by: calebamiles, david-mcmahon

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:

• OWNERS

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

[calebamiles]

/retest

[ixdy]

@cjwagner tests above are failing with

I0221 17:06:45.141] Call:  /workspace/./test-infra/jenkins/../scenarios/kubernetes_verify.py --branch=release-1.10 --prow
W0221 17:06:45.167] Traceback (most recent call last):
W0221 17:06:45.168]   File "/workspace/./test-infra/jenkins/../scenarios/kubernetes_verify.py", line 170, in <module>
W0221 17:06:45.168]     main(ARGS.branch, ARGS.script, ARGS.force, ARGS.prow)
W0221 17:06:45.168]   File "/workspace/./test-infra/jenkins/../scenarios/kubernetes_verify.py", line 94, in main
W0221 17:06:45.169]     tag = VERSION_TAG[BRANCH_VERSION.get(ver, ver)]
W0221 17:06:45.169] KeyError: '1.10'
E0221 17:06:45.169] Command failed

[calebamiles]

total speculation that kubernetes/test-infra#6919 would fix the above test failure. Better question is why this works for 1.9

[fejta-bot]

/retest
This bot automatically retries jobs that failed/flaked on approved PRs (send feedback to fejta).

Review the full test history for this PR.

Silence the bot with an /lgtm cancel comment for consistent failures.

[calebamiles]

/retest

[k8s-github-robot]

Automatic merge from submit-queue.