Remove deprecated & unsupported components related content from docs

[longwuyuan]

What happened:

• There is content in the docs related to components like opentracing and zipkin for example, that are deprecated and removed from the controller
• This Issue is to track removal of such content from docs

/triage accepted
/kind docs
/area documentation
/help

[k8s-ci-robot]

@longwuyuan:
This request has been marked as needing help from a contributor.

Guidelines

Please ensure that the issue body includes answers to the following questions:

• Why are we solving this issue?
• To address this issue, are there any code changes? If there are code changes, what needs to be done in the code and what places can the assignee treat as reference points?
• Does this issue have zero to low barrier of entry?
• How can the assignee reach out to you for help?

For more details on the requirements of such an issue, please see here and ensure that they are met.

If this request no longer meets these requirements, the label can be removed
by commenting with the /remove-help command.

In response to this:

What happened:

• There is content in the docs related to components like opentracing and zipkin for example, that are deprecated and removed from the controller
• This Issue is to track removal of such content from docs

/triage accepted
/kind docs
/area documentation
/help

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[k8s-ci-robot]

@longwuyuan: The label(s) kind/docs, area/documentation cannot be applied, because the repository doesn't have them.

In response to this:

What happened:

• There is content in the docs related to components like opentracing and zipkin for example, that are deprecated and removed from the controller
• This Issue is to track removal of such content from docs

/triage accepted
/kind docs
/area documentation
/help

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[longwuyuan]

/kind documentation
/area docs

[longwuyuan]

/priority important-longterm

[github-actions]

This is stale, but we won't close it automatically, just bare in mind the maintainers may be busy with other tasks and will reach your issue ASAP. If you have any question or request to prioritize this, please reach #ingress-nginx-dev on Kubernetes Slack.

[longwuyuan]

/remove-lifecycle frozen

[github-actions]

This is stale, but we won't close it automatically, just bare in mind the maintainers may be busy with other tasks and will reach your issue ASAP. If you have any question or request to prioritize this, please reach #ingress-nginx-dev on Kubernetes Slack.

[VasuDevrani]

@longwuyuan Hey is their a way to know list of deprecated and unsupported contents?

[longwuyuan]

The issue description contains 2 components