diff --git a/.gitignore b/.gitignore
index a7c95b85..f519ca06 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,8 +5,8 @@
.packages
.project
.pub/
-# build/
-# **/packages/
+build/
+**/packages/
# Files created by dart2js
# (Most Dart developers will use pub build to compile Dart, use/modify these
diff --git a/build/lib/src/runner/browser/static/packages/browser/dart.js b/build/lib/src/runner/browser/static/packages/browser/dart.js
deleted file mode 100644
index f8d686e1..00000000
--- a/build/lib/src/runner/browser/static/packages/browser/dart.js
+++ /dev/null
@@ -1,32 +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.
-
-(function() {
-// Bootstrap support for Dart scripts on the page as this script.
-if (navigator.userAgent.indexOf('(Dart)') === -1) {
- // TODO:
- // - Support in-browser compilation.
- // - Handle inline Dart scripts.
-
- // Fall back to compiled JS. Run through all the scripts and
- // replace them if they have a type that indicate that they source
- // in Dart code (type="application/dart").
- var scripts = document.getElementsByTagName("script");
- var length = scripts.length;
- for (var i = 0; i < length; ++i) {
- if (scripts[i].type == "application/dart") {
- // Remap foo.dart to foo.dart.js.
- if (scripts[i].src && scripts[i].src != '') {
- var script = document.createElement('script');
- script.src = scripts[i].src.replace(/\.dart(?=\?|$)/, '.dart.js');
- var parent = scripts[i].parentNode;
- // TODO(vsm): Find a solution for issue 8455 that works with more
- // than one script.
- document.currentScript = script;
- parent.replaceChild(script, scripts[i]);
- }
- }
- }
-}
-})();
diff --git a/build/lib/src/runner/browser/static/packages/browser/interop.js b/build/lib/src/runner/browser/static/packages/browser/interop.js
deleted file mode 100644
index ec02e585..00000000
--- a/build/lib/src/runner/browser/static/packages/browser/interop.js
+++ /dev/null
@@ -1,9 +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.
-
-// TODO(jmesserly): remove this script after a deprecation period.
-if (typeof console == "object" && typeof console.warn == "function") {
- console.warn('
-
-