Revert "dart2js: Trust type annotations more often with --trust-type-annotation."

tests/compiler/dart2js/trust_type_annotations2_test.dart

Index: tests/compiler/dart2js/trust_type_annotations2_test.dart
diff --git a/tests/compiler/dart2js/trust_type_annotations2_test.dart b/tests/compiler/dart2js/trust_type_annotations2_test.dart
deleted file mode 100644
index 174b2a0abf3bbfaece7f8af11cc07c0cc7926eeb..0000000000000000000000000000000000000000
--- a/tests/compiler/dart2js/trust_type_annotations2_test.dart
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:expect/expect.dart';
-import "package:async_helper/async_helper.dart";
-import 'memory_compiler.dart';
-
-const MEMORY_SOURCE_FILES = const {
-  'main.dart': '''
-
-foo(int x, int y) {
-  return x + y;
-}
-
-main (x, y) {
-  if (x != null) {
-    if (y != null) {
-      return foo(x, y);
-    }
-  }
-}
-''',
-};
-
-main() {
-  var compiler = compilerFor(MEMORY_SOURCE_FILES,
-                             options: ['--trust_type_annotations']);
-  asyncTest(() => compiler.runCompiler(Uri.parse('memory:main.dart')).then((_) {
-    var element = compiler.mainApp.findExported('main');
-    var code = compiler.backend.assembleCode(element);
-    Expect.isTrue(code.contains('+'), code);
-  }));
-}