instaslice: remove promotion (openshift#64523)

sync

Author: rphillips

ci-operator/config/openshift/instaslice-operator/openshift-instaslice-operator-main.yaml

@@ -9,10 +9,6 @@ images:
     RUN dnf install -y skopeo git && dnf clean all
   from: src
   to: instaslice-base-src
-promotion:
-  to:
-  - name: "4.18"
-    namespace: ocp
 releases:
   initial:
     integration:

ci-operator/jobs/openshift/instaslice-operator/openshift-instaslice-operator-main-postsubmits.yaml

@@ -97,7 +97,6 @@ presubmits:
         - --image-import-pull-secret=/etc/pull-secret/.dockerconfigjson
         - --report-credentials-file=/etc/report/credentials
         - --target=[images]
-        - --target=[release:latest]
         command:
         - ci-operator
         image: ci-operator:latest