topology: remove standalone entrypoints for svc and mgmt infra

The pipelines today, as written, depend on (parts of) each other, and
cannot be run separately. When we're ready to do so, we can refactor and
reintroduce the entrypoints as neeed.

Signed-off-by: Steve Kuznetsov <stekuznetsov@microsoft.com>

Author: stevekuznetsov

topology.yaml

@@ -8,14 +8,6 @@ entrypoints:
   metadata:
     name: Region
     scopeDoc: high-level-architecture.md#regional-scope
-- identifier: 'Microsoft.Azure.ARO.HCP.Service.Infra'
-  metadata:
-    name: Service Cluster
-    scopeDoc: high-level-architecture.md#service-cluster
-- identifier: 'Microsoft.Azure.ARO.HCP.Management.Infra'
-  metadata:
-    name: Management Cluster
-    scopeDoc: high-level-architecture.md#management-clusters
 services:
 - serviceGroup: Microsoft.Azure.ARO.HCP.Global
   children: