update the taiyi requirement.

Signed-off-by: wxywb <xy.wang@zilliz.com>

requirements.txt

@@ -0,0 +1,3 @@
+torch
+transformers
+towhee

taiyi.py

@@ -15,11 +15,6 @@ import torch
 from transformers import BertForSequenceClassification, BertConfig, BertTokenizer
 from transformers import CLIPProcessor, CLIPModel
 
-import sys
-from pathlib import Path
-import torch
-from torchvision import transforms
-
 from towhee.types.image_utils import to_pil
 from towhee.operator.base import NNOperator, OperatorFlag
 from towhee.types.arg import arg, to_image_color