Remove examples not ready

[Jeffwan]

Based on users' feedback, someone run into issues in some of the notebooks.

1. 02_01 dockerhub example
2. 05_03 kubeflow_tfx examples

Let's remove them temporarily to reduce confusion.

[Jeffwan]

Put it here for backup

# Login Dockerhub
# !docker login -u <your_username> -p <your_password>

# You suppose to see logs like

# WARNING! Using --password via the CLI is insecure. Use --password-stdin.
# Login Succeeded

# Setting up DockerHub container repositories for storing output containers
DOCKERHUB_USERNAME = 'seedjeffwan'
DOCKER_REGISTRY = '{}'.format(DOCKERHUB_USERNAME)
fairing.config.set_builder('append', base_image='tensorflow/tensorflow:1.14.0-py3', registry=DOCKER_REGISTRY, push=True)
fairing.config.set_deployer('job')

if __name__ == '__main__':
    remote_train = fairing.config.fn(train)
    remote_train()

[Jeffwan]

# Option 1: Install Fairing Python SDK from python repository
!pip install kubeflow-fairing

# Option 2: Install latest Fairing from github repository (If you'd like to try new features)
# !git clone https://github.com/kubeflow/fairing

# Since some of our patches have not been merged back to upstream. Let's install branch version with all the fixes
!git clone --single-branch --branch master https://github.com/kubeflow/fairing

[Jeffwan]

## Deploy persist model to KF Serving

from kubeflow import fairing

if __name__ == '__main__':
    fairing.config.set_deployer('kfserving', namespace='kubeflow', framework='tensorflow',
                               default_model_uri='s3://kfserving-samples/models/tensorflow/flowers', cleanup=True)
    fairing.config.run()