Deleted: - 7 dead _candle suffix functions in GpuTensor (zero callers) - gradient_utils.rs (empty 12-line placeholder) - gradient_accumulation.rs (empty 12-line placeholder) - optimizers/adam.rs + optimizers/mod.rs (empty 12-line placeholders) - Re-exports of above from ml crate Total: 88 lines of dead code removed, 0 functionality lost. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>