Comment out UMX and XMUX to prevent no internet error to participants

predict.py

@@ -9,10 +9,10 @@ copy_predictor = CopyPredictor()
 scaledmixture_predictor = ScaledMixturePredictor()
 
 # UMX needs `models` folder to be present in your submission, check test_umx.py to learn more
-umx_predictor = UMXPredictor()
+# umx_predictor = UMXPredictor()
 
 # X-UMX needs `models` folder to be present in your submission, check test_xumx.py to learn more
-xumx_predictor = XUMXPredictor()
+# xumx_predictor = XUMXPredictor()
 
 """
 PARTICIPANT_TODO: The implementation you want to submit as your submission