Remove stale dependencies on dart2js scripts.

dart/utils/compiler/compiler.gyp

 # Copyright (c) 2012, 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.
 
 {
   'variables': {
     'dart_dir': '../..',
   },
   'targets': [
     {
@@ skipping 18 matching lines @@
             '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)gen_snapshot<(EXECUTABLE_SUFFIX)',
             # Note: we don't store the snapshot in the location where
             # the dart2js script is looking for it.  The motivation
             # for that is to support an incremental development model
             # for dart2js compiler engineers.  However, we install the
             # snapshot in the proper location when building the SDK.
             '--script_snapshot=<(PRODUCT_DIR)/dart2js.snapshot',
             '../../sdk/lib/_internal/compiler/implementation/dart2js.dart',
           ],
         },
+        {
+          # TODO(ahe): Remove this action after a few days.
+          'action_name': 'remove_old_scripts',
+          'inputs': [
+            'remove_old_scripts.py',
+          ],
+          'outputs': [
+            '<(INTERMEDIATE_DIR)/<(_action_name).success',
+          ],
+          'action': [
+            'python',
+            '<@(_inputs)',
+            '<@(_outputs)',
+            '<(PRODUCT_DIR)/dart2js',
+            '<(PRODUCT_DIR)/dart2js.bat',
+            '<(PRODUCT_DIR)/dart2js_developer',
+            '<(PRODUCT_DIR)/dart2js_developer.bat',
+            '<(PRODUCT_DIR)/dartdoc',
+            '<(PRODUCT_DIR)/dartdoc.bat',
+          ]
+        },
       ],
     },
   ],
 }