Moved most of html lib generating scripts into tools.

sdk/lib/html/templates/html/dart2js/impl_Navigator.darttemplate

Index: sdk/lib/html/templates/html/dart2js/impl_Navigator.darttemplate
diff --git a/sdk/lib/html/templates/html/dart2js/impl_Navigator.darttemplate b/sdk/lib/html/templates/html/dart2js/impl_Navigator.darttemplate
deleted file mode 100644
index 9b7117f0c5f5b69bac111c63166432087442d0b3..0000000000000000000000000000000000000000
--- a/sdk/lib/html/templates/html/dart2js/impl_Navigator.darttemplate
+++ /dev/null
@@ -1,14 +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;
-
-/// @domName $DOMNAME; @docsEditable true
-class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
-
-  /// @domName Navigator.language; @docsEditable true
-  String get language => JS('String', '#.language || #.userLanguage', this,
-      this);
-  $!MEMBERS
-}