[Core][Hybrid allocator + connector 2/n] Unify `remove_skipped_blocks` by `get_last_useful_token`#25431

heheda12345 merged 9 commits intovllm-project:mainvllm-project/vllm:mainfrom

KuntaiDu:kuntai-add-get-last-useful-tokenKuntaiDu/vllm:kuntai-add-get-last-useful-tokenCopy head branch name to clipboard