Fixes VMG webhook validation error

Author: srm09

pkg/services/vmoperator/vmopmachine.go

@@ -242,6 +242,8 @@ func (v *VmopMachineService) ReconcileNormal(ctx context.Context, machineCtx cap
 		}
 		mdNames := []string{}
 		for _, machineDeployment := range machineDeployments.Items {
+			// Not adding node pool with explicit failureDomain specified to propose anti-affinity behavior
+			// among node pools with automatic placement only.
 			if machineDeployment.Spec.Template.Spec.FailureDomain == "" && machineDeployment.Name != nodePool {
 				mdNames = append(mdNames, machineDeployment.Name)
 			}
@@ -282,7 +284,7 @@ func (v *VmopMachineService) ReconcileNormal(ctx context.Context, machineCtx cap
 								},
 							},
 						},
-						TopologyKey: corev1.LabelTopologyZone,
+						TopologyKey: "",
 					},
 				},
 			},