Stop publishing sample docs

[onobc]

All sections in the samples doc are covered elsewhere and we should be able to stop publishing the docs.

Here is a list of each section in the doc along w/ its replacement

Java DSL

https://docs.spring.io/spring-cloud-dataflow-samples/docs/current/reference/htmlsingle/#_java_dsl
REPLACED WITH
https://dataflow.spring.io/docs/feature-guides/streams/java-dsl/#stream-java-dsl

Streaming

https://docs.spring.io/spring-cloud-dataflow-samples/docs/current/reference/htmlsingle/#_streaming
WELL COVERED BY
https://dataflow.spring.io/docs/concepts/streams/
https://dataflow.spring.io/docs/stream-developer-guides/
stream-applications

Task/Batch

https://docs.spring.io/spring-cloud-dataflow-samples/docs/current/reference/htmlsingle/#_task_batch
WELL COVERED BY
https://dataflow.spring.io/docs/concepts/batch-jobs/
https://dataflow.spring.io/docs/batch-developer-guides/

Stream/Launching Batch Job

https://docs.spring.io/spring-cloud-dataflow-samples/docs/current/reference/htmlsingle/#_stream_launching_batch_job
WELL COVERED BY https://github.com/spring-cloud/spring-cloud-dataflow/tree/main/spring-cloud-dataflow-tasklauncher

Analytics Section

https://docs.spring.io/spring-cloud-dataflow-samples/docs/current/reference/htmlsingle/#_analytics
REPLACED WITH
https://github.com/spring-cloud/stream-applications/blob/main/applications/sink/analytics-sink/README.adoc

Datascience Section

https://docs.spring.io/spring-cloud-dataflow-samples/docs/current/reference/htmlsingle/#_data_science
REPLACED WITH
https://github.com/spring-cloud/stream-applications/tree/main/applications/processor/semantic-segmentation-processor

Function Section

https://docs.spring.io/spring-cloud-dataflow-samples/docs/current/reference/htmlsingle/#_functions_in_spring_cloud_data_flow
Based on old Spring Cloud Function Bridge https://github.com/spring-cloud-stream-app-starters/function/blob/main/spring-cloud-starter-stream-app-function/README.adoc
which is supported OOTB w/ SCS now
RECOMMEND USE stream-applications instead

Monitoring Section

https://docs.spring.io/spring-cloud-dataflow-samples/docs/current/reference/htmlsingle/#_monitoring
REPLACED WITH
https://dataflow.spring.io/docs/feature-guides/general/server-monitoring/
https://dataflow.spring.io/docs/feature-guides/streams/monitoring/
https://dataflow.spring.io/docs/feature-guides/batch/monitoring/

Security Section

https://docs.spring.io/spring-cloud-dataflow-samples/docs/current/reference/htmlsingle/#_security
REPLACED WITH
https://docs.spring.io/spring-cloud-dataflow/docs/2.9.2/reference/htmlsingle/#configuration-security

[onobc]

@jvalkeal
@dturanski
@cppwfs
@ilayaperumalg
@sobychacko

Please review the above and lmk if you dis/agree w/ it.

Thanks