Integrate meta-seco-intel/remove_old_files
Commit: edgehog/layers/seco/meta-seco-intel@86405807
[CICD] Fix on manifest file reference
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Commit: edgehog/layers/seco/meta-seco-intel@01b400f7
[DOC] Remove deprecated documentation
- Remove old license and documentation
- Clean-up of README.md file