Remove mentions of rancher telemetry

[adamkpickering]

Summary

Fixes: #12639

This PR removes code related to telemetry. This removal is planned for 2.11. Related PRs:

• https://github.com/rancher/rancher/pull/48031
• https://github.com/rancher/rancher-docs/pull/1567

The JIRA issue for this is SURE-9295.

I am not super familiar with this repository so if there is anything that needs changing please let me know. But I think this should be fairly straightforward.

Checklist

• [x] The PR is linked to an issue and the linked issue has a Milestone, or no issue is needed
• [x] The PR has a Milestone
• [x] The PR template has been filled out
• [x] The PR has been self reviewed
• [ ] The PR has a reviewer assigned
• [x] The PR has automated tests or clear instructions for manual tests and the linked issue has appropriate QA labels, or tests are not needed
• [ ] The PR has reviewed with UX and tested in light and dark mode, or there are no UX changes

[richard-cox]

Note for whoever picks this up, we should review this from a UX and automated test perspective as well as functional and code.

@rancher-max Should there also be UI QA on the changes?

@adamkpickering Feel free to reference jira as SURE-x