Revert "Update all Angular libs (run update_all.sh)."

third_party/pkg/angular/lib/core_dom/ng_element.dart

Index: third_party/pkg/angular/lib/core_dom/ng_element.dart
diff --git a/third_party/pkg/angular/lib/core_dom/ng_element.dart b/third_party/pkg/angular/lib/core_dom/ng_element.dart
deleted file mode 100644
index b6d12d022f0f87903e9d4e4b6e0fa2d3b16da43e..0000000000000000000000000000000000000000
--- a/third_party/pkg/angular/lib/core_dom/ng_element.dart
+++ /dev/null
@@ -1,67 +0,0 @@
-part of angular.core.dom_internal;
-
-@Injectable()
-class NgElement {
-  static const _TO_BE_REMOVED = const Object();
-
-  final dom.Element node;
-  final Scope _scope;
-  final Animate _animate;
-
-  final _classesToUpdate = <String, bool>{};
-  final _attributesToUpdate = <String, dynamic>{};
-
-  bool _writeScheduled = false;
-
-  NgElement(this.node, this._scope, this._animate);
-
-  void addClass(String className) {
-    _scheduleDomWrite();
-    _classesToUpdate[className] = true;
-  }
-
-  void removeClass(String className) {
-    _scheduleDomWrite();
-    _classesToUpdate[className] = false;
-  }
-
-  void setAttribute(String attrName, [value = '']) {
-    _scheduleDomWrite();
-    _attributesToUpdate[attrName] = value == null ? '' : value;
-  }
-
-  void removeAttribute(String attrName) {
-    _scheduleDomWrite();
-    _attributesToUpdate[attrName] = _TO_BE_REMOVED;
-  }
-
-  /// Schedules a DOM write for the next flush phase
-  _scheduleDomWrite() {
-    if (!_writeScheduled) {
-      _writeScheduled = true;
-      _scope.rootScope.domWrite(() {
-        _writeToDom();
-        _writeScheduled = false;
-      });
-    }
-  }
-
-  /// Executes scheduled DOM update - this should be called from the flush phase
-  _writeToDom() {
-    _classesToUpdate.forEach((String className, bool toBeAdded) {
-      toBeAdded
-        ? _animate.addClass(node, className)
-        : _animate.removeClass(node, className);
-    });
-    _classesToUpdate.clear();
-
-    _attributesToUpdate.forEach((String attrName, value) {
-      if (value == _TO_BE_REMOVED) {
-        node.attributes.remove(attrName);
-      } else {
-        node.attributes[attrName] = value;
-      }
-    });
-    _attributesToUpdate.clear();
-  }
-}