Move the Postman outside of the linea sdk package

[VGau]

Description

The Linea SDK package currently includes the Postman service. We propose removing this service to streamline the SDK and eliminate unnecessary components.

Motivation

Removing the Postman service will reduce the package size and simplify the SDK. This enhances maintainability and aligns with best practices by keeping the package focused on essential functionalities.

Tasks

• Moving the Postman service code in another folder.
• Update any dependencies or references related to the Postman service.
• Test the SDK to ensure it functions correctly without the Postman service.
• Update documentation to reflect this change.

Acceptance criteria

• The Postman service is completely removed from the SDK package.
• The SDK operates without errors after removal.
• All references to the Postman service are updated or removed.
• Documentation is updated accordingly.

Risks

• Other components may depend on the Postman service.
• Potential for unexpected issues post-removal.

Remember to

• Add the documentation label in case there is an impact on the documentation
• Add priority and team labels
• Add Task for updating the Runbook or adding/updating existing metrics and alerts.