Sweep: Refactor sweepai/core/sweep_bot.py to remove commented out code and use traceback in error logs

[sweep-nightly[bot]]

In the file sweepai/core/sweep_bot.py, there are a few issues that need to be addressed:

1. There is a large chunk of commented out code at lines 20-40. This code should be removed unless it serves as a docstring or explanation in the code.

2. The file uses the logger.warning function to log errors at lines 50, 60, and 70. However, it does not use traceback during these exceptions. All error logs should use traceback during exceptions to provide more detailed error information. Please refactor these lines to include traceback.

Please make these changes to ensure the file conforms to our coding standards.

[sweep-nightly[bot]]

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