remove prometheus operator from helm ci github action

Signed-off-by: Edward Welch <[email protected]>

.github/workflows/helm-ci.yml

@@ -78,20 +78,6 @@ jobs:
         uses: helm/[email protected]
         if: steps.list-changed.outputs.changed == 'true'
 
-      - name: Install prometheus operator
-        id: install-prometheus
-        if: steps.list-changed.outputs.changed == 'true'
-        run: |
-          kubectl create namespace prometheus
-
-          helm install prometheus prometheus-community/kube-prometheus-stack \
-            --namespace prometheus \
-            --set grafana.enabled=false \
-            --set prometheus.prometheusSpec.serviceMonitorSelector.matchLabels.release=prometheus
-
-          kubectl --namespace prometheus get pods -l "release=prometheus"
-          kubectl --namespace prometheus get services -l "release=prometheus"
-
       - name: Run chart-testing (install)
         run: |
           changed=$(ct list-changed --config "${CT_CONFIGFILE}")