Remove additional /hyperkube reference

The /hyperkube prefix isn't required and causes problems when using
non-hyperkube images elsewhere.

Related earlier change: https://review.opendev.org/#/c/754487/

Change-Id: I23918669bae4d9b7d41140b2c26d3176c45665ee

promenade/templates/roles/genesis/etc/kubernetes/manifests/kubernetes-scheduler.yaml

@@ -16,7 +16,6 @@ spec:
     - name: kube-scheduler
       image: {{ config['Genesis:images.kubernetes.scheduler'] }}
       command:
-      - ./hyperkube
       - kube-scheduler
       - --leader-elect=true
       - --kubeconfig=/etc/kubernetes/scheduler/kubeconfig.yaml