The pull-etcd-unit-test-amd64, pull-etcd-unit-test-386,
pull-etcd-integration-1-cpu-amd64, pull-etcd-integration-2-cpu-amd64
and pull-etcd-integration-8-cpu-amd64 jobs are already running on the
prow infrastructure. It is safe to remove these duplicated workloads
from GitHub actions.
Signed-off-by: Ivan Valdes <ivan@vald.es>