[Request]: Update or remove Transform data with custom ingest pipelines tutorial

[colleenmcginnis]

Description

Related to #4313

With the recent addition of the Elasticsearch apm-data plugin and the updated role of the APM integration, the Transform data with custom ingest pipelines tutorial is no longer accurate. We need to decide if we should update it or remove it.

Resources

#4313

Which documentation set does this change impact?

Stateful only

Feature differences

I think this tutorial only exists in the stateful docs.

What release is this request related to?

8.15

Collaboration model

The documentation team

Point of contact.

Main contact: ?

Stakeholders: @carsonip