### What this PR does / why we need it? - Revert "Re-patch TritonPlaceholder on main to make CI happy (#753)" because upstream main CI already merged: https://github.com/vllm-project/vllm/pull/17446 - Keep 0.8.5.post1 compatible ### Does this PR introduce _any_ user-facing change? No ### How was this patch tested? CI passed --------- Signed-off-by: Yikun Jiang <yikunkero@gmail.com>