Automatic merge from submit-queue (batch tested with PRs 45653, 45719, 45729, 45730, 44250)

Remove kubemark.sh as we don't use pod IP from it anymore

This has been pending for sometime now. We no longer seem to actually depend on the downwarp api for the pod IP (hollow-proxy for example now gets it using api call).

cc @wojtek-t @gmarek