Remove more TensorBoard stuff from flask branch

Author: Ubuntu

beginner_source/blitz/README.txt

@@ -19,10 +19,4 @@ Deep Learning with PyTorch: A 60 Minute Blitz
 
 5. cifar10_tutorial.py
 	Training a Classifier
-	https://pytorch.org/tutorials/beginner/blitz/cifar10_tutorial.html
-
-6. tensorboard_tutorial.py
-	Visualizing Models, Data, and Training with TensorBoard
-	https://pytorch.org/tutorials/beginner/blitz/tensorboard_tutorial.html
-
-
+	https://pytorch.org/tutorials/beginner/blitz/cifar10_tutorial.html