Do not expose registries to extensions (#1304)

Signed-off-by: Lauri Nevala <lauri.nevala@gmail.com>

src/extensions/core-api/index.ts

@@ -9,7 +9,6 @@ import * as App from "./app"
 import * as EventBus from "./event-bus"
 import * as Store from "./stores"
 import * as Util from "./utils"
-import * as Registry from "../registries"
 import * as ClusterFeature from "./cluster-feature"
 
 // TODO: allow to expose windowManager.navigate() as Navigation.navigate() in runtime
@@ -21,5 +20,4 @@ export {
   ClusterFeature,
   Store,
   Util,
-  Registry,
 }