app/router.js

@@ -7,7 +7,6 @@ const Router = EmberRouter.extend({
 });
 
 Router.map(function() {
-  this.route('spinner');
   this.route('proposals', function() {
     this.route('new');
   });

app/routes/spinner.js

@@ -1,4 +0,0 @@
-import Route from '@ember/routing/route';
-
-export default Route.extend({
-});

app/templates/spinner.hbs

@@ -1 +0,0 @@
-{{loading-spinner}}

tests/unit/routes/spinner-test.js

@@ -1,11 +0,0 @@
-import { module, test } from 'qunit';
-import { setupTest } from 'ember-qunit';
-
-module('Unit | Route | spinner', function(hooks) {
-  setupTest(hooks);
-
-  test('it exists', function(assert) {
-    let route = this.owner.lookup('route:spinner');
-    assert.ok(route);
-  });
-});