Fix outdated torch_logs tutorial by removing CUDA device check

[ManasVardhan]

Fix

The torch_logs.py tutorial was wrapped in a CUDA device capability check:

if torch.cuda.get_device_capability() < (7, 0):
    print("Skipping because torch.compile is not supported on this device.")
else:
    # ... entire tutorial ...

When built on CI without a compatible GPU, this caused the rendered docs to show only "Skipping because torch.compile is not supported on this device." instead of actual compilation log output.

Changes

• Removed the CUDA device capability check that gated the entire tutorial
• Use dynamic device selection (cuda if available, otherwise cpu)
• torch.compile works on CPU, so the tutorial now produces meaningful log output regardless of build environment

Fixes pytorch/pytorch#137285

cc @PaliC @mlazos

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/tutorials/3770

• 📄 Preview Python docs built from this PR

Note: Links to docs will display an error until the docs builds have been completed.

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[ManasVardhan]

I've signed the CLA. Could you re-run the CLA check? Thanks!