- Remove 6 eprintln!("[GPU-DEBUG]...") statements from gpu_dqn_trainer.rs,
constructor.rs, and elementwise.rs
- Delete log_gpu_memory() function and all 18 callers in smoke test files
- Remove check_err() drains from GpuDqnTrainer::new() and
GpuExperienceCollector::new() — root cause is fixed (per-context kernel cache)
- Keep check_err() after CUDA Graph capture (legitimate — drains event tracking errors)
- Fix broken import lines in smoke test files after sed cleanup
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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