strip out redundant code from admin wizards route and controller

assets/javascripts/discourse/controllers/admin-wizards.js.es6

@@ -1,9 +1,12 @@
 import Controller from "@ember/controller";
-import { equal, or } from "@ember/object/computed";
+import { or } from "@ember/object/computed";
+import { inject as service } from "@ember/service";
 
 export default Controller.extend({
-  businessSubscription: equal("subscriptionType", "business"),
-  communitySubscription: equal("subscriptionType", "community"),
-  standardSubscription: equal("subscriptionType", "standard"),
-  showApi: or("businessSubscription", "communitySubscription"),
+  subscription: service(),
+
+  showApi: or(
+    "subscription.businessSubscription",
+    "subscription.communitySubscription"
+  ),
 });

assets/javascripts/discourse/routes/admin-wizards.js.es6

@@ -1,19 +1,6 @@
 import DiscourseRoute from "discourse/routes/discourse";
-import { ajax } from "discourse/lib/ajax";
 
 export default DiscourseRoute.extend({
-  model() {
-    return ajax("/admin/wizards");
-  },
-
-  setupController(controller, model) {
-    controller.setProperties({
-      subscribed: model.subscribed,
-      subscriptionType: model.subscription_type,
-      subscriptionAttributes: model.subscription_attributes,
-    });
-  },
-
   afterModel(model, transition) {
     if (transition.targetName === "adminWizards.index") {
       this.transitionTo("adminWizardsWizard");