chore: remove obsolete dart related files

modules/benchmarks_external/src/static_tree/tree_benchmark.dart

@@ -1,164 +0,0 @@
-// static tree benchmark in AngularDart 1.x
-library static_tree_benchmark_ng10;
-
-import 'package:angular/angular.dart';
-import 'package:angular/application_factory.dart';
-import 'package:angular2/src/testing/benchmark_util.dart';
-
-setup() {
-  var m = new Module()
-    ..bind(CompilerConfig,
-        toValue: new CompilerConfig.withOptions(elementProbeEnabled: false))
-    ..bind(ScopeDigestTTL,
-        toFactory: () => new ScopeDigestTTL.value(15), inject: [])
-    ..bind(TreeComponent0)
-    ..bind(TreeComponent1)
-    ..bind(TreeComponent2)
-    ..bind(TreeComponent3)
-    ..bind(TreeComponent4)
-    ..bind(TreeComponent5)
-    ..bind(TreeComponent6)
-    ..bind(TreeComponent7)
-    ..bind(TreeComponent8)
-    ..bind(TreeComponent9);
-
-  final injector = applicationFactory().addModule(m).run();
-
-  return injector;
-}
-
-const MAX_DEPTH = 10;
-
-main() {
-  final injector = setup();
-  final zone = injector.get(VmTurnZone);
-  final rootScope = injector.get(Scope);
-  rootScope.context['initData'] = null;
-  var count = 0;
-
-  TreeNode createData() {
-    var values = count++ % 2 == 0
-        ? ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '*']
-        : ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', '-'];
-    return buildTree(MAX_DEPTH, values, 0);
-  }
-
-  destroyDom() {
-    zone.run(() {
-      rootScope.context['initData'] = null;
-    });
-  }
-
-  createDom() {
-    zone.run(() {
-      rootScope.context['initData'] = createData();
-    });
-  }
-
-  bindAction('#destroyDom', destroyDom);
-  bindAction('#createDom', createDom);
-}
-
-@Component(
-    selector: 'tree0',
-    map: const {'data': '=>data'},
-    template: '<span> {{data.value}} ')
-class TreeComponent0 {
-  var data;
-}
-
-@Component(
-    selector: 'tree1',
-    map: const {'data': '=>data'},
-    template:
-        '<span> {{data.value}} <tree0 data=data.right></tree0><tree0 data=data.left></tree0>')
-class TreeComponent1 {
-  var data;
-}
-
-@Component(
-    selector: 'tree2',
-    map: const {'data': '=>data'},
-    template:
-        '<span> {{data.value}} <tree1 data=data.right></tree1><tree1 data=data.left></tree1>')
-class TreeComponent2 {
-  var data;
-}
-
-@Component(
-    selector: 'tree3',
-    map: const {'data': '=>data'},
-    template:
-        '<span> {{data.value}} <tree2 data=data.right></tree2><tree2 data=data.left></tree2>')
-class TreeComponent3 {
-  var data;
-}
-
-@Component(
-    selector: 'tree4',
-    map: const {'data': '=>data'},
-    template:
-        '<span> {{data.value}} <tree3 data=data.right></tree3><tree3 data=data.left></tree3>')
-class TreeComponent4 {
-  var data;
-}
-
-@Component(
-    selector: 'tree5',
-    map: const {'data': '=>data'},
-    template:
-        '<span> {{data.value}} <tree4 data=data.right></tree4><tree4 data=data.left></tree4>')
-class TreeComponent5 {
-  var data;
-}
-
-@Component(
-    selector: 'tree6',
-    map: const {'data': '=>data'},
-    template:
-        '<span> {{data.value}} <tree5 data=data.right></tree5><tree5 data=data.left></tree5>')
-class TreeComponent6 {
-  var data;
-}
-
-@Component(
-    selector: 'tree7',
-    map: const {'data': '=>data'},
-    template:
-        '<span> {{data.value}} <tree6 data=data.right></tree6><tree6 data=data.left></tree6>')
-class TreeComponent7 {
-  var data;
-}
-
-@Component(
-    selector: 'tree8',
-    map: const {'data': '=>data'},
-    template:
-        '<span> {{data.value}} <tree7 data=data.right></tree7><tree7 data=data.left></tree7>')
-class TreeComponent8 {
-  var data;
-}
-
-@Component(
-    selector: 'tree9',
-    map: const {'data': '=>data'},
-    template:
-        '<span> {{data.value}} <tree8 data=data.right></tree8><tree8 data=data.left></tree8>')
-class TreeComponent9 {
-  var data;
-}
-
-buildTree(maxDepth, values, curDepth) {
-  if (maxDepth == curDepth) return new TreeNode('');
-  return new TreeNode(
-      values[curDepth],
-      buildTree(maxDepth, values, curDepth + 1),
-      buildTree(maxDepth, values, curDepth + 1));
-}
-
-class TreeNode {
-  var value;
-  TreeNode left;
-  TreeNode right;
-  TreeNode([this.value, this.left, this.right]);
-}