docs: remove the child device configuration management page

[reubenmiller]

Proposed changes

Remove the page guiding the user how to write an agent to handle the configuration operations using python. The goals of the page are no longer aligned with the project as the tedge-agent can be run on child devices, and the page should focus on an overall implementation rather than only the configuration operation handler.

Future proposal:

Write a new page which details how to write a full custom python agent which uses the thin-edge.io interface, and to include full testing of the solution. Such an agent, python-tedge-agent, already exists and is used in one of the examples in the tedge-demo-container project.

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Improvement (general improvements like code refactoring that doesn't explicitly fix a bug or add any new functionality)
• Documentation Update (if none of the other choices apply)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Paste Link to the issue

#2551

Checklist

• I have read the CONTRIBUTING doc
• I have signed the CLA (in all commits with git commit -s)
• I ran cargo fmt as mentioned in CODING_GUIDELINES
• I used cargo clippy as mentioned in CODING_GUIDELINES
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

Further comments

[github-actions]

Robot Results

✅ Passed	❌ Failed	⏭️ Skipped	Total	Pass %	⏱️ Duration
380	0	3	380	100	54m31.48s

[didier-wenzek]

Approved