### What this PR does / why we need it? `stateless_init_dp_group` in vllm works with non-cuda platform now. Remove this useless patch. Which was introduced in vllm-ascend bye74331a1ed(v0.8.4rc2) vLLM upstream merged:3e472d882a(v0.8.0) ### Does this PR introduce _any_ user-facing change? No ### How was this patch tested? CI passed Signed-off-by: wangxiyuan <wangxiyuan1007@gmail.com>