Remove TodoView, which isn't even used.

architecture-examples/emberjs/js/views/todo_view.js

-/*global Todos Ember */
-'use strict';
-
-Todos.TodoView = Ember.View.extend({
-	tagName: 'li',
-	classNameBindings: [
-		'todo.isCompleted:completed',
-		'isEditing:editing'
-	],
-	doubleClick: function () {
-		this.set('isEditing', true);
-	}
-});