avoid modify the proto files

proto/DataConfig.proto

@@ -13,8 +13,6 @@ See the License for the specific language governing permissions and
 limitations under the License. */
 syntax = "proto2";
 
-option optimize_for = LITE_RUNTIME;
-
 package paddle;
 
 message FileGroupConf {

proto/ModelConfig.proto

@@ -13,7 +13,6 @@ See the License for the specific language governing permissions and
 limitations under the License. */
 syntax = "proto2";
 
-option optimize_for = LITE_RUNTIME;
 import "ParameterConfig.proto";
 
 package paddle;

proto/ParameterConfig.proto

@@ -13,8 +13,6 @@ See the License for the specific language governing permissions and
 limitations under the License. */
 syntax = "proto2";
 
-option optimize_for = LITE_RUNTIME;
-
 package paddle;
 
 /**

proto/ParameterService.proto

@@ -13,8 +13,6 @@ See the License for the specific language governing permissions and
 limitations under the License. */
 syntax = "proto2";
 
-option optimize_for = LITE_RUNTIME;
-
 import "ParameterConfig.proto";
 import "TrainerConfig.proto";
 

proto/TrainerConfig.proto

@@ -13,8 +13,6 @@ See the License for the specific language governing permissions and
 limitations under the License. */
 syntax = "proto2";
 
-option optimize_for = LITE_RUNTIME;
-
 import "DataConfig.proto";
 import "ModelConfig.proto";