Update requirements.txt

requirements.txt

@@ -1,6 +1,4 @@
-streamlit==0.90.0
-torch==1.9.0
-torchvision==0.10.0
-opencv-python-headless==4.5.3.56
-Pillow==8.3.1
-git+https://github.com/ultralytics/yolov5.git#egg=yolov5
+torch
+opencv-python-headless
+Pillow
+streamlit