message: Don't strip default attributes when sending from master to workers
diff: @@ -31,7 +31,6 @@ limitations under the License.
  #include "tensorflow/core/framework/allocation_description.pb.h"
  #include "tensorflow/core/framework/collective.h"
  #include "tensorflow/core/framework/cost_graph.pb.h"
  -#include "tensorflow/core/framework/graph_def_util.h"
  #include "tensorflow/core/framework/node_def.pb.h"
  #include "tensorflow/core/framework/node_def_util.h"
  #include "tensorflow/core/framework/tensor.h"
  @@ -473,8 +472,8 @@ Status MasterSession::ReffedClientGraph::DoRegisterPartitions(
  c->req.set_session_handle(session_handle_);
  c->req.set_create_worker_session_called(!should_deregister_);
  c->req.mutable_graph_def()->Swap(&graph_partitions[part.name]);
  - StripDefaultAttributes(*OpRegistry::Global(),
  - c->req.mutable_graph_def()->mutable_node());
  + // TODO(b/146354085): Default attributes should be stripped here from
  + // c->req.graph_def(), but this causes some TFX pipelines to fail.
  *c->req.mutable_config_proto() = session_opts_.config;
  *c->req.mutable_graph_options() = session_opts_.config.graph_options();
  *c->req.mutable_debug_options() =
  