Revert "Generate some of the C++ bindings for mojom tagged unions."

mojo/public/tools/bindings/generators/cpp_templates/module.cc.tmpl

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if defined(__clang__)
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wunused-private-field"
 #elif defined(_MSC_VER)
 #pragma warning(push)
 #pragma warning(disable:4056)
 #pragma warning(disable:4756)
 #endif
 
 #include "{{module.path}}.h"
 
 #include <math.h>
 
 #include "mojo/public/cpp/bindings/lib/array_serialization.h"
 #include "mojo/public/cpp/bindings/lib/bindings_serialization.h"
 #include "mojo/public/cpp/bindings/lib/bounds_checker.h"
 #include "mojo/public/cpp/bindings/lib/map_data_internal.h"
 #include "mojo/public/cpp/bindings/lib/map_serialization.h"
 #include "mojo/public/cpp/bindings/lib/message_builder.h"
 #include "mojo/public/cpp/bindings/lib/string_serialization.h"
 #include "mojo/public/cpp/bindings/lib/validate_params.h"
 #include "mojo/public/cpp/bindings/lib/validation_errors.h"
-#include "mojo/public/cpp/bindings/lib/union_accessor.h"
 #include "mojo/public/cpp/environment/logging.h"
 
 {%- for namespace in namespaces_as_array %}
 namespace {{namespace}} {
 {%- endfor %}
 
 {#--- Constants #}
 {%  for constant in module.constants %}
 const {{constant.kind|cpp_pod_type}} {{constant.name}} = {{constant|constant_value}};
 {%- endfor %}
@@ skipping 19 matching lines @@
 
 #pragma pack(pop)
 
 }  // namespace
 
 {#--- Struct definitions #}
 {%  for struct in structs %}
 {%-   include "struct_definition.tmpl" %}
 {%- endfor %}
 
-{#--- Union definitions #}
-{%  for union in unions %}
-{%-   include "union_definition.tmpl" %}
-{%- endfor %}
-
 }  // namespace internal
 
 {#--- Struct Constants #}
 {%- for struct in structs %}
 {%     for constant in struct.constants %}
 const {{constant.kind|cpp_pod_type}} {{struct.name}}::{{constant.name}} = {{constant|constant_value}};
 {%-   endfor %}
 {%- endfor %}
 
 {#--- Struct builder definitions #}
 {%- for struct in structs %}
 {%-   include "wrapper_class_definition.tmpl" %}
 {%- endfor %}
 
-{#--- Union builder definitions #}
-{%- for union in unions %}
-{%-   include "wrapper_union_class_definition.tmpl" %}
-{%- endfor %}
-
 {#--- Interface definitions #}
 {%- for interface in interfaces %}
 {%-   include "interface_definition.tmpl" %}
 {%- endfor %}
 
 {#--- Struct Serialization Helpers #}
 {%- for struct in structs %}
 {%-   include "struct_serialization_definition.tmpl" %}
 {%- endfor %}
 
-{#--- Union Serialization Helpers #}
-{%- for union in unions %}
-{%-   include "union_serialization_definition.tmpl" %}
-{%- endfor %}
-
 {%- for namespace in namespaces_as_array|reverse %}
 }  // namespace {{namespace}}
 {%- endfor %}
 
 #if defined(__clang__)
 #pragma clang diagnostic pop
 #elif defined(_MSC_VER)
 #pragma warning(pop)
 #endif