import Ember from 'ember';
import FirebaseAdapter from 'emberfire/adapters/firebase';

const { inject } = Ember;

export default FirebaseAdapter.extend({
  firebase: inject.service(),
});

import Ember from 'ember';
import FirebaseAdapter from 'emberfire/adapters/firebase';

const {inject, computed} = Ember;

export default FirebaseAdapter.extend({
  firebase: inject.service(),
});

--- 
+++ 
@@ -1,7 +1,7 @@
 import Ember from 'ember';
 import FirebaseAdapter from 'emberfire/adapters/firebase';
 
-const {inject, computed} = Ember;
+const { inject } = Ember;
 
 export default FirebaseAdapter.extend({
   firebase: inject.service(),
Remove unused `computed` var in blueprint app adapter
