Remove stale dependencies on dart2js scripts.

dart/utils/compiler/compiler.gyp

Index: dart/utils/compiler/compiler.gyp
diff --git a/dart/utils/compiler/compiler.gyp b/dart/utils/compiler/compiler.gyp
index d57beea8c2fbcdd42f55203212d5027c330c218f..4226483aef9d24899068157f6b04fd4b1cdcfe11 100644
--- a/dart/utils/compiler/compiler.gyp
+++ b/dart/utils/compiler/compiler.gyp
@@ -36,6 +36,27 @@
             '../../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',
+          ]
+        },
       ],
     },
   ],