fix nlp dep (#7265)

* fix trt int8 inference

* fix nlp dep

test_tipc/prepare.sh

@@ -108,7 +108,6 @@ if [ ${MODE} = "benchmark_train" ];then
     fi
     if [ ${model_name} == "layoutxlm_ser" ] || [ ${model_name} == "vi_layoutxlm_ser" ]; then
         pip install -r ppstructure/kie/requirements.txt
-        pip install paddlenlp\>=2.3.5 --force-reinstall -i https://mirrors.aliyun.com/pypi/simple/
         wget -nc -P ./train_data/ https://paddleocr.bj.bcebos.com/ppstructure/dataset/XFUND.tar --no-check-certificate
         cd ./train_data/ && tar xf XFUND.tar
         # expand gt.txt 10 times