Remove code related to the Home Assistant integration

[sweep-ai[bot]]

Description

This PR removes all code related to the Home Assistant integration in the p2000.py script. The Home Assistant integration allows for posting P2000 messages to Home Assistant via the REST API. However, it has been identified that this functionality is no longer needed and can be safely removed.

Summary of Changes

• Removed the 'post_data' method from the 'Main' class in the p2000.py script.
• Removed the call to the 'post_data' method in the 'post_thread_call' method of the 'Main' class.
• Removed the code that initializes the Home Assistant related configuration in the constructor of the 'Main' class.
• Updated the 'config.ini' file to remove the Home Assistant related configuration.

These changes ensure that the p2000.py script no longer has any functionality that interacts with Home Assistant, making it more focused and streamlined.

Fixes #9.

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