Update build.sh

Author: brianjo

.jenkins/build.sh

@@ -25,8 +25,8 @@ pip install -r $DIR/../requirements.txt
 #Install PyTorch Nightly for test. 
 # Nightly - pip install --pre torch torchvision torchaudio -f https://download.pytorch.org/whl/nightly/cu102/torch_nightly.html
 # RC Link
-pip uninstall -y torch torchvision torchaudio torchtext
-pip install --pre --upgrade -f https://download.pytorch.org/whl/test/cu102/torch_test.html torch torchvision torchaudio torchtext
+# pip uninstall -y torch torchvision torchaudio torchtext
+# pip install --pre --upgrade -f https://download.pytorch.org/whl/test/cu102/torch_test.html torch torchvision torchaudio torchtext
 
 # For Tensorboard. Until 1.14 moves to the release channel.
 pip install tb-nightly