Remove v1a1 VM mutation webhook when v1a2 FSS is enabled

The v1a1 VM mutation webhook can be safely removed because the
v1a2 VM mutation webhook does that needful now.

webhooks/virtualmachine/webhooks.go

@@ -11,7 +11,6 @@ import (
 	"github.com/vmware-tanzu/vm-operator/pkg/context"
 	"github.com/vmware-tanzu/vm-operator/pkg/lib"
 	"github.com/vmware-tanzu/vm-operator/webhooks/virtualmachine/v1alpha1"
-	v1a1mut "github.com/vmware-tanzu/vm-operator/webhooks/virtualmachine/v1alpha1/mutation"
 	"github.com/vmware-tanzu/vm-operator/webhooks/virtualmachine/v1alpha2"
 )
 
@@ -20,10 +19,6 @@ func AddToManager(ctx *context.ControllerManagerContext, mgr ctrlmgr.Manager) er
 		if err := v1alpha2.AddToManager(ctx, mgr); err != nil {
 			return errors.Wrap(err, "failed to initialize v1alpha2 webhooks")
 		}
-		// With v1a2 FSS enabled, the v1a1 VM mutation webhook is added to the manager
-		if err := v1a1mut.AddToManager(ctx, mgr); err != nil {
-			return errors.Wrap(err, "failed to initialize v1alpha1 virtual machine mutation webhooks")
-		}
 	} else {
 		if err := v1alpha1.AddToManager(ctx, mgr); err != nil {
 			return errors.Wrap(err, "failed to initialize v1alpha1 webhooks")