Remove vt_tutorial.py (#3415)

Co-authored-by: Svetlana Karslioglu <svekars@meta.com>

Author: NicolasHug

beginner_source/vt_tutorial.py

@@ -116,13 +116,6 @@ Welcome to PyTorch Tutorials
  :link: beginner/transfer_learning_tutorial.html
  :tags: Image/Video
 
-.. customcarditem::
- :header: Optimizing Vision Transformer Model
- :card_description: Apply cutting-edge, attention-based transformer models to computer vision tasks.
- :image: _static/img/thumbnails/cropped/60-min-blitz.png
- :link: beginner/vt_tutorial.html
- :tags: Image/Video
-
 .. customcarditem::
  :header: Adversarial Example Generation
  :card_description: Train a convolutional neural network for image classification using transfer learning.
@@ -937,7 +930,6 @@ Additional Resources
  beginner/fgsm_tutorial
  beginner/dcgan_faces_tutorial
  intermediate/spatial_transformer_tutorial
- beginner/vt_tutorial
  intermediate/tiatoolbox_tutorial
 
 .. toctree::
@@ -1050,7 +1042,6 @@ Additional Resources
  beginner/profiler
  intermediate/tensorboard_profiler_tutorial
  beginner/hyperparameter_tuning_tutorial
- beginner/vt_tutorial
  intermediate/parametrizations
  intermediate/pruning_tutorial
  advanced/dynamic_quantization_tutorial