Remove unused Stepable concern

What does this MR do and why?

This MR removes the unused model concern Stepable and its RuboCop TODOs.

Last use was removed back in !128949 (merged).

MR acceptance checklist

Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

How to set up and validate locally

1. Search for Stepable
2. Search for stepable.rb
3. Search for stepable_spec.rb

assigned to @splattael

restored source branch pl-remove-stepable-concern

changed milestone to %16.9

added Engineering Productivity maintenanceremoval typemaintenance labels

added 1 commit

• c58754ff - Remove unused Stepable concern

Compare with previous version

changed the description

@rkadam3

Skipping initial review do you mind reviewing this MR?

requested review from @rkadam3

added backend label

	1 Message
	CHANGELOG missing: If this merge request needs a changelog entry, add the Changelog trailer to the commit message you want to add to the changelog. If this merge request doesn't need a CHANGELOG entry, feel free to ignore this message.

Reviewer roulette

Changes that require review have been detected!

Please refer to the table below for assigning reviewers and maintainers suggested by Danger in the specified category:

Category	Reviewer	Maintainer
backend	@jtapiab (UTC-3, 4 hours behind author)	@dgruzd (UTC+1, same timezone as author)

Please check reviewer's status!

• Reviewer is available!
• Reviewer is unavailable!

Feel free to override these selections if you think someone else would be better-suited or use the GitLab Review Workload Dashboard to find other available reviewers.

To read more on how to use the reviewer roulette, please take a look at the Engineering workflow and code review guidelines. Please consider assigning a reviewer or maintainer who is a domain expert in the area of the merge request.

Once you've decided who will review this merge request, assign them as a reviewer! Danger does not automatically notify them for you.

If needed, you can retry the danger-review job that generated this comment.

Generated by Danger

E2E Test Result Summary

allure-report-publisher generated test report!

e2e-test-on-gdk: test report for c58754ff

expand test summary

+------------------------------------------------------------------+
|                          suites summary                          |
+-------------+--------+--------+---------+-------+-------+--------+
|             | passed | failed | skipped | flaky | total | result |
+-------------+--------+--------+---------+-------+-------+--------+
| Verify      | 31     | 0      | 0       | 0     | 31    | ✅     |
| Plan        | 53     | 0      | 0       | 0     | 53    | ✅     |
| Create      | 49     | 0      | 10      | 0     | 59    | ✅     |
| Release     | 5      | 0      | 0       | 0     | 5     | ✅     |
| Govern      | 65     | 0      | 1       | 0     | 66    | ✅     |
| Data Stores | 31     | 0      | 1       | 0     | 32    | ✅     |
| Monitor     | 7      | 0      | 0       | 0     | 7     | ✅     |
| Package     | 15     | 0      | 1       | 0     | 16    | ✅     |
| Analytics   | 2      | 0      | 0       | 0     | 2     | ✅     |
| Manage      | 0      | 0      | 1       | 0     | 1     | ➖     |
+-------------+--------+--------+---------+-------+-------+--------+
| Total       | 258    | 0      | 14      | 0     | 272   | ✅     |
+-------------+--------+--------+---------+-------+-------+--------+

approved this merge request

added pipeline:run-all-rspec label

@rkadam3, thanks for approving this merge request.

This is the first time the merge request has been approved. To ensure we don't only run predictive pipelines, and we don't break master, a new pipeline will be started shortly.

Please wait for the pipeline to start before resolving this discussion and set auto-merge for the new pipeline. See merging a merge request for more details.

added pipeline:mr-approved label

resolved all threads

enabled an automatic merge when all merge checks for c58754ff pass

merged

mentioned in commit 7b69614e