Remove bindings-dart

sky/engine/bindings-dart/dart/scripts/templates/callback_interface_cpp.template

-// Copyright 2014 The Dartium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// This file has been auto-generated by {{code_generator_dart}}. DO NOT MODIFY!
-
-#include "config.h"
-{% filter conditional(conditional_string) %}
-#include "{{dart_class}}.h"
-
-{% for filename in cpp_includes %}
-#include "{{filename}}"
-{% endfor %}
-
-namespace blink {
-
-{% for method in methods if not method.custom %}
-{{method.cpp_type}} {{dart_class}}::{{method.name}}({{method.argument_declarations | join(', ')}})
-{
-    {% set return_default = 'return true'
-           if method.idl_type == 'boolean' else 'return' %}{# void #}
-    if (!m_callback.isIsolateAlive())
-        {{return_default}};
-    DartIsolateScope scope(m_callback.isolate());
-    DartApiScope apiScope;
-    {% if method.call_with_this_handle %}
-    // FIXME: we ignore thisValue which may or may not be correct for Dart.
-    {% endif %}
-    {% for argument in method.arguments %}
-    Dart_Handle {{argument.handle}} = {{argument.cpp_value_to_dart_value}};
-    if (Dart_IsError({{argument.handle}})) {
-        if (!isScriptControllerTerminating())
-            CRASH();
-        {{return_default}};
-    }
-    {% endfor %}
-    {% if method.arguments %}
-    Dart_Handle arguments[] = { {{method.arguments | join(', ', attribute='handle')}} };
-    {% else %}
-    Dart_Handle *arguments = 0;
-    {% endif %}
-
-    {% set return_with = 'return'
-           if method.idl_type == 'boolean' else '' %}{# void #}
-    {{return_with}} m_callback.handleEvent({{method.arguments | length}}, arguments);
-}
-
-{% endfor %}
-}  // namespace blink
-{% endfilter %}