Remove legacy comment from angular.dart
Remove legacy comment from angular.dart

PiperOrigin-RevId: 160453893

kevmoo/angular,angulardart/angular,matanlurey/angular,chalin/angular2,chalin/angular2,kevmoo/angular,angulardart/angular,matanlurey/angular,kevmoo/angular,angulardart/angular,matanlurey/angular,chalin/angular2