Revert "Dartium JS Interop enabled."

tools/dom/templates/html/impl/impl_WorkerNavigator.darttemplate

Index: tools/dom/templates/html/impl/impl_WorkerNavigator.darttemplate
diff --git a/tools/dom/templates/html/impl/impl_WorkerNavigator.darttemplate b/tools/dom/templates/html/impl/impl_WorkerNavigator.darttemplate
deleted file mode 100644
index 137390cc617004f6734cbcfe2513388bd4752342..0000000000000000000000000000000000000000
--- a/tools/dom/templates/html/impl/impl_WorkerNavigator.darttemplate
+++ /dev/null
@@ -1,23 +0,0 @@
-// 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.
-
-part of $LIBRARYNAME;
-
-@DocsEditable()
-$(ANNOTATIONS)$(NATIVESPEC)$(CLASS_MODIFIERS)class $CLASSNAME$EXTENDS$IMPLEMENTS {
-$!MEMBERS
-$if DARTIUM
-  // Override these methods for Dartium _WorkerNavigator can't be abstract.
-  String get appCodeName => _blink.BlinkWorkerNavigator.instance.appCodeName_Getter_(unwrap_jso(this));
-  String get appName => _blink.BlinkWorkerNavigator.instance.appCodeName_Getter_(unwrap_jso(this));
-  String get appVersion => _blink.BlinkWorkerNavigator.instance.appVersion_Getter_(unwrap_jso(this));
-  bool get dartEnabled => _blink.BlinkWorkerNavigator.instance.dartEnabled_Getter_(unwrap_jso(this));
-  String get platform => _blink.BlinkWorkerNavigator.instance.platform_Getter_(unwrap_jso(this));
-  String get product => _blink.BlinkWorkerNavigator.instance.product_Getter_(unwrap_jso(this));
-  String get userAgent => _blink.BlinkWorkerNavigator.instance.userAgent_Getter_(unwrap_jso(this));
-  int get hardwareConcurrency => _blink.BlinkWorkerNavigator.instance.hardwareConcurrency_Getter_(unwrap_jso(this));
-  bool get onLine => _blink.BlinkWorkerNavigator.instance.onLine_Getter_(unwrap_jso(this));
-$endif
-}
-