Android : Best way to delete Activity and its references in Android Studio

I created an activity by accident (let's call it FooActivity) in Android Studio. What is the best way to delete this and all associated references/code? What I did was I deleted FooActivity.java, res/layout/activity_foo.xml, and the associated tag in AndroidManifest.xml. But I'm not sure if I'm missing anything else associated with FooActivity. Ideally, it would be nice to be able to do all of this automatically when I no longer need a given activity.