Merge pull request ppc64le-cloud#537 from ppc64le-cloud/remove-ssh-key-config

Remove ssh_key_secret from prow default config

Author: ppc64le-cloud-bot

config/prow/config.yaml

@@ -84,8 +84,6 @@ plank:
         entrypoint: us-docker.pkg.dev/k8s-infra-prow/images/entrypoint:v20240802-66b115076
         initupload: us-docker.pkg.dev/k8s-infra-prow/images/initupload:v20240802-66b115076
         sidecar: us-docker.pkg.dev/k8s-infra-prow/images/sidecar:v20240802-66b115076
-      ssh_key_secrets:
-        - bot-ssh-secret
 
 tide:
   sync_period: 2m