Previously the ReviewReplyDraftBannerView was not correctly removed

when a review reply was published; the element would be removed from

the DOM, but the event listeners would still fire (and cause errors in

the console). Now, the view is correctly removed with

Backbone.View.remove so the elements are removed from the DOM and all

event listeners are disconnects.

Ran JS tests.
With this patch applied, the error no longer appears in the console.