Revert "Merge more Kernel infrastructure from kernel_sdk SDK fork."

tests/kernel/unsorted/simple_literal_test.dart

-// Copyright (c) 2016, 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.
-
-// Tests of literals (and imports, return, ==, and static methods).
-import 'expect.dart';
-
-test0() {
-  return 'Hello, world!';
-}
-
-test1() {
-  return 42;
-}
-
-test2() {
-  return 2.71828;
-}
-
-test3() {
-  return 6.022e23;
-}
-
-test4() {
-  return true;
-}
-
-test5() {
-  return false;
-}
-
-test6() {
-  return 1405006117752879898543142606244511569936384000000000;
-}
-
-main() {
-  Expect.isTrue(test0() == 'Hello, world!');
-  Expect.isTrue(test1() == 42);
-  Expect.isTrue(test2() == 2.71828);
-  Expect.isTrue(test3() == 6.022e23);
-  Expect.isTrue(test4());
-  Expect.isTrue(test5() == false);
-  Expect.isTrue(
-      test6() == 1405006117752879898543142606244511569936384000000000);
-}