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- ~~[OWNERS](https://github.com/kubernetes-sigs/kube-scheduler-simulator/blob/master/OWNERS)~~ [sanposhiho]
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What type of PR is this?
/kind cleanup
What this PR does / why we need it:
As the title says ref: https://medium.com/@marcin.niemira/optimise-docker-build-for-go-c03d6eb8b4b
Which issue(s) this PR fixes:
None
Special notes for your reviewer:
/label tide/merge-method-squash