doc: removed Kubernetes workflow content (aws#1900)

* Update README.rst

* Update index.rst

* Delete amazon_sagemaker_components_for_kubeflow_pipelines.rst

* Delete amazon_sagemaker_jobs.rst

* Delete amazon_sagemaker_operators_for_kubernetes.rst

* Delete amazon_sagemaker_operators_for_kubernetes_authentication.png

* Delete index.rst

* Delete using_amazon_sagemaker_components.rst

Author: IvyBazan

README.rst

@@ -53,7 +53,6 @@ Table of Contents
 #. `Secure Training and Inference with VPC <https://sagemaker.readthedocs.io/en/stable/overview.html#secure-training-and-inference-with-vpc>`__
 #. `BYO Model <https://sagemaker.readthedocs.io/en/stable/overview.html#byo-model>`__
 #. `Inference Pipelines <https://sagemaker.readthedocs.io/en/stable/overview.html#inference-pipelines>`__
-#. `Amazon SageMaker Operators for Kubernetes <https://sagemaker.readthedocs.io/en/stable/amazon_sagemaker_operators_for_kubernetes.html>`__
 #. `Amazon SageMaker Operators in Apache Airflow <https://sagemaker.readthedocs.io/en/stable/using_workflow.html>`__
 #. `SageMaker Autopilot <src/sagemaker/automl/README.rst>`__
 #. `Model Monitoring <https://sagemaker.readthedocs.io/en/stable/amazon_sagemaker_model_monitoring.html>`__

doc/workflows/index.rst

@@ -8,5 +8,4 @@ The SageMaker Python SDK supports managed training and inference for a variety o
     :maxdepth: 2
 
     airflow/index
-    kubernetes/index
     step_functions/index