Removed DARTIUM codegen for IDLS (sdk/lib/dartium)

tools/dom/src/dartium_Platform.dart

Index: tools/dom/src/dartium_Platform.dart
diff --git a/tools/dom/src/dartium_Platform.dart b/tools/dom/src/dartium_Platform.dart
deleted file mode 100644
index a851ccab25689859275adf32f88548bedd459f39..0000000000000000000000000000000000000000
--- a/tools/dom/src/dartium_Platform.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2013, 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.
-
-part of html;
-
-class Platform {
-  /**
-   * Returns true if dart:typed_data types are supported on this
-   * browser.  If false, using these types will generate a runtime
-   * error.
-   */
-  static final supportsTypedData = true;
-
-  /**
-   * Returns true if SIMD types in dart:typed_data types are supported
-   * on this browser.  If false, using these types will generate a runtime
-   * error.
-   */
-  static final supportsSimd = true;
-}