clena up requirements.txt for TF2

Author: hephaex

vendor/ngc-tensorflow/requirements.txt

@@ -330,7 +330,7 @@ tabulate==0.8.7
 tblib==1.6.0
 #tensorflow==2.4.1
 #tensorflow_datasets==4.1.0
-tensorflow_hub==0.10.0
+#tensorflow_hub==0.10.0
 #tensorflow_metadata==0.30.0
 #tensorflow_model_analysis==0.30.0
 #tensorflow_text==2.4.3