Add metricstorage webhooks to clean webhook script

Author: vyzigold

hack/clean_local_webhook.sh

@@ -7,3 +7,5 @@ oc delete validatingwebhookconfiguration/vceilometer.kb.io --ignore-not-found
 oc delete mutatingwebhookconfiguration/mceilometer.kb.io --ignore-not-found
 oc delete validatingwebhookconfiguration/vtelemetry.kb.io --ignore-not-found
 oc delete mutatingwebhookconfiguration/mtelemetry.kb.io --ignore-not-found
+oc delete validatingwebhookconfiguration/vmetricstorage.kb.io --ignore-not-found
+oc delete mutatingwebhookconfiguration/mmetricstorage.kb.io --ignore-not-found