remove duplicate code of python/paddle/trainer_config_helpers/config_parser.py

python/paddle/trainer_config_helpers/config_parser.py

-# Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-import paddle.trainer.config_parser as config_parser
-'''
-This file is a wrapper of formal config_parser. The main idea of this file is to 
-separete different config logic into different function, such as network configuration
- and optimizer configuration.
-'''
-
-__all__ = [
-    "parse_trainer_config", "parse_network_config", "parse_optimizer_config"
-]
-
-
-def parse_trainer_config(trainer_conf, config_arg_str):
-    return config_parser.parse_config(trainer_conf, config_arg_str)
-
-
-def parse_network_config(network_conf):
-    config = config_parser.parse_config(network_conf, '')
-    return config.model_config
-
-
-def parse_optimizer_config(optimizer_conf):
-    config = config_parser.parse_config(optimizer_conf, '')
-    return config.opt_config