remove redundant comments

Author: sneaxiy

paddle/fluid/operators/arg_max_op.cc

@@ -13,11 +13,6 @@ See the License for the specific language governing permissions and
 limitations under the License. */
 
 #include "paddle/fluid/operators/arg_max_op.h"
-/*
-REGISTER_ARG_MINMAX_OP_WITHOUT_GRADIENT(arg_max, ArgMax);
-
-REGISTER_ARG_MINMAX_KERNEL(arg_max, ArgMax, CPU);
-*/
 
 REGISTER_OPERATOR(arg_max, paddle::operators::ArgMaxOp,
                   paddle::operators::ArgMaxOpMaker,

paddle/fluid/operators/arg_max_op.cu

@@ -14,8 +14,6 @@ limitations under the License. */
 
 #include "paddle/fluid/operators/arg_max_op.h"
 
-// REGISTER_ARG_MINMAX_KERNEL(arg_max, ArgMax, CUDA);
-
 REGISTER_OP_CUDA_KERNEL(
     arg_max,
     paddle::operators::ArgMaxKernel<paddle::platform::CUDADeviceContext, float,

paddle/fluid/operators/arg_min_op.cc

@@ -13,11 +13,6 @@ See the License for the specific language governing permissions and
 limitations under the License. */
 
 #include "paddle/fluid/operators/arg_min_op.h"
-/*
-REGISTER_ARG_MINMAX_OP_WITHOUT_GRADIENT(arg_min, ArgMin);
-
-REGISTER_ARG_MINMAX_KERNEL(arg_min, ArgMin, CPU);
-*/
 
 REGISTER_OPERATOR(arg_min, paddle::operators::ArgMinOp,
                   paddle::operators::ArgMinOpMaker,

paddle/fluid/operators/arg_min_op.cu

@@ -14,8 +14,6 @@ limitations under the License. */
 
 #include "paddle/fluid/operators/arg_min_op.h"
 
-// REGISTER_ARG_MINMAX_KERNEL(arg_min, ArgMin, CUDA);
-
 REGISTER_OP_CUDA_KERNEL(
     arg_min,
     paddle::operators::ArgMinKernel<paddle::platform::CUDADeviceContext, float,