diff --git a/qwen3_6_scripts/patch_ops.sh b/qwen3_6_scripts/patch_ops.sh
index 28a794c0..3f70c7cf 100755
--- a/qwen3_6_scripts/patch_ops.sh
+++ b/qwen3_6_scripts/patch_ops.sh
@@ -246,20 +246,6 @@ if source != installed:
     raise SystemExit("runtime api_server overlay identity mismatch")
 PY
 
-build_stage "compiling CCCL CachingDeviceAllocator LD_PRELOAD module"
-bash ./cccl_preload/build_cccl_preload.sh /workspace/qwen3_6_scripts/cccl_preload || \
-    echo "[WARN] CCCL preload allocator build failed — will use default allocator"
-
-build_stage "compiling CoreX CUDA extensions (moe_index_combine + gdn_chunk_recurrent)"
-if [[ -x /usr/local/corex-3.2.3/bin/clang++ ]]; then
-    bash ./build_corex_moe_index_combine.sh "${VLLM_ROOT}" || \
-        echo "[WARN] moe_index_combine build failed — will use PyTorch fallback"
-    bash ./build_corex_gdn_chunk_recurrent.sh "${VLLM_ROOT}" || \
-        echo "[WARN] gdn_chunk_recurrent build failed — will use Python fallback"
-else
-    echo "[WARN] corex clang++ not found — skipping extension builds"
-fi
-
 build_stage "compiling submission Python sources"
 find . -path './wheels' -prune -o -name '*.py' -print0 | xargs -0 python3 -m py_compile
 build_stage "patch script completed"