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Automatic merge from submit-queue (batch tested with PRs 49989, 49806, 49649, 49412, 49512) Use existing k8s binaries and images on disk when they are preloaded to gce cos image. **What this PR does / why we need it**: This change is to accelerate K8S startup time on gce when k8s tarballs and images are already preloaded in VM image, by skipping the downloading, extracting and file transfer steps. **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 NONE ```