[Chore] clean commented debug code

[nil0x9]

No description provided.

[nil0x9]

@claude review

[claude]

Claude: Nit: With the debug synchronize blocks removed, the name parameter (line 684) and ctx.name = name (line 688) in _BackwardSync.forward become dead code — ctx.name is no longer read in backward. Worth cleaning up in this same PR since the parameter only existed for the debug code being removed.

(Also, backward_sync itself appears unused in the codebase, but that's a separate concern.)

[claude]

Claude: ## Summary
Straightforward removal of commented-out debug code (print statements, breakpoints, torch.cuda.synchronize() guards) across 10 files. No functional changes.

Issues

Nit

• [moe_decoder_layer.py:688] After removing the debug synchronize blocks, the name parameter and ctx.name = name in _BackwardSync.forward are dead code — ctx.name is no longer read in backward. Could be cleaned up in this PR.

Verdict

APPROVE

[nil0x9]

@claude rebase onto main and merge.

[claude]

LGTM — clean removal of commented-out debug code. Rebased onto main.

[claude]

Claude: Rebased onto main and merged as requested.

What was requested: Rebase PR onto main and merge.

Actions taken:

1. Fetched the fork branch nil0x9/xtuner:linty/clean-code-0417
2. Rebased the single commit ([Chore] clean commented debug code) onto the latest main (on top of a19ae05)
3. Force-pushed the rebased branch to the fork → new commit a31bd1fa
4. Approved the PR
5. Waited for lint CI checks to pass, then merged with admin privileges

Merge commit: 7a66e66