remove WatchBookmark feature-gate comment from types.go

Author: carlory

staging/src/k8s.io/apimachinery/pkg/apis/meta/internalversion/types.go

@@ -41,8 +41,6 @@ type ListOptions struct {
 	// assume bookmarks are returned at any specific interval, nor may they
 	// assume the server will send any BOOKMARK event during a session.
 	// If this is not a watch, this field is ignored.
-	// If the feature gate WatchBookmarks is not enabled in apiserver,
-	// this field is ignored.
 	AllowWatchBookmarks bool
 	// resourceVersion sets a constraint on what resource versions a request may be served from.
 	// See https://kubernetes.io/docs/reference/using-api/api-concepts/#resource-versions for