rm cpu infer in tablemaster

test_tipc/configs/table_master/train_infer_python.txt

@@ -37,8 +37,8 @@ export2:null
 infer_model:null
 infer_export:null
 infer_quant:False
-inference:ppstructure/table/predict_structure.py  --table_char_dict_path=./ppocr/utils/dict/table_master_structure_dict.txt --image_dir=./ppstructure/docs/table/table.jpg --output ./output/table --table_algorithm=TableMaster --table_max_len=480 
---use_gpu:True|False
+inference:ppstructure/table/predict_structure.py  --table_char_dict_path=./ppocr/utils/dict/table_master_structure_dict.txt --output ./output/table --table_algorithm=TableMaster --table_max_len=480 
+--use_gpu:True
 --enable_mkldnn:False
 --cpu_threads:6
 --rec_batch_num:1