Automatic merge from submit-queue

Remove the old docker-multinode files that were built into the hyperkube image

**What this PR does / why we need it**:

ref: https://goo.gl/VxSaKx

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
The hyperkube image has been slimmed down and no longer includes addon manifests and other various scripts. These were introduced for the now removed docker-multinode setup system.
```

cc @jbeda @brendandburns @bgrant0607 @justinsb @mikedanese