[Attention][2/n] Remove usage of deprecated seq_lens_cpu and num_computed_tokens_cpu CommonAttentionMetadata properties#31774

DarkLight1337 merged 5 commits intovllm-project:mainvllm-project/vllm:mainfrom

neuralmagic:deprecate-cpu-props/ssm-backendsneuralmagic/vllm:deprecate-cpu-props/ssm-backendsCopy head branch name to clipboard