revert requirements.txt

requirements.txt

-torch
-torchvision
+-f https://download.pytorch.org/whl/torch_stable.html
+torch==1.11.0+cpu
+torchvision==0.12.0+cpu
 numpy
 Flask
 Flask-Cors
@@ -9,4 +10,4 @@ pytest
 tqdm
 pygad
 matplotlib
-python-dotenv
\ No newline at end of file
+python-dotenv