message: Simplify storing input shapes TRT node
diff: @@ -369,13 +369,11 @@ Status CreateTRTNode(const ConversionParams& params,
  out_types.at(conn.port_number) = conn.connection_type;
  } else {
  // Set the shapes and data types of input edge.
  - tensorflow::TensorShapeProto in_shape;
  - conn.outside_shape.AsProto(&in_shape);
  if (input_shapes.size() <= conn.port_number) {
  input_shape_protos.resize(conn.port_number + 1);
  input_shapes.resize(conn.port_number + 1);
  }
  - input_shape_protos.at(conn.port_number) = in_shape;
  + conn.outside_shape.AsProto(&input_shape_protos.at(conn.port_number));
  input_shapes.at(conn.port_number) = conn.outside_shape;
  // Shape must be fully defined (excluding batch dimension) for static
  // mode.
  