[CLEANUP beta] Remove more unused view cruft

Author: chancancode

packages/ember-views/lib/views/core_view.js

@@ -33,7 +33,6 @@ const CoreView = EmberObject.extend(Evented, ActionHandler, {
     this._super(...arguments);
     this._state = 'preRender';
     this._currentState = this._states.preRender;
-    this._isDispatchingAttrs = false;
 
     initViewElement(this);
 

packages/ember-views/lib/views/states/default.js

@@ -1,8 +1,6 @@
 import {
-  Error as EmberError,
-  get
+  Error as EmberError
 } from 'ember-metal';
-import { MUTABLE_CELL } from '../../compat/attrs';
 
 /**
 @module ember
@@ -18,19 +16,6 @@ export default {
     return undefined;
   },
 
-  legacyPropertyDidChange(view, key) {
-    let attrs = view.attrs;
-    if (attrs && key in attrs) {
-      let possibleCell = attrs[key];
-
-      if (possibleCell && possibleCell[MUTABLE_CELL]) {
-        let value = get(view, key);
-        if (value === possibleCell.value) { return; }
-        possibleCell.update(value);
-      }
-    }
-  },
-
   // Handle events from `Ember.EventDispatcher`
   handleEvent() {
     return true; // continue event propagation

packages/ember-views/lib/views/states/pre_render.js

@@ -1,15 +1,8 @@
-import { assign } from 'ember-utils';
 import _default from './default';
 
 /**
 @module ember
 @submodule ember-views
 */
 
-let preRender = Object.create(_default);
-
-assign(preRender, {
-  legacyPropertyDidChange(view, key) {}
-});
-
-export default preRender;
+export default Object.create(_default);

packages/ember-views/lib/views/view.js

@@ -1,5 +1,3 @@
-import '../system/ext';  // for the side effect of extending Ember.run.queues
-
 /**
 @module ember
 @submodule ember-views