The bots were deleted on the infra side.

NOTRY=true
TBR=jkummerow@chromium.org

Bug: v8:6550
Change-Id: I2c054c04535d218a540e5d22ca2770627cafded4
Reviewed-on: https://chromium-review.googlesource.com/559340
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46413}