Remove operators not available in OCP 4.20 (#3339)

Author: rawagner

libs/ui-lib/lib/common/config/constants.ts

@@ -354,9 +354,6 @@ export const singleClusterOperators = [
   OPERATOR_NAME_NODE_MAINTENANCE,
   OPERATOR_NAME_FENCE_AGENTS_REMEDIATION,
   OPERATOR_NAME_KUBE_DESCHEDULER,
-  OPERATOR_NAME_CLUSTER_OBSERVABILITY,
-  OPERATOR_NAME_LOKI,
-  OPERATOR_NAME_OPENSHIFT_LOGGING,
 ];
 
 export const singleClusterBundles = ['virtualization'];