[Misc] Remove dead VLLM_RPC_TIMEOUT env var and fix profiling doc that references it#44128

sfeng33 merged 4 commits into

vllm-project:mainvllm-project/vllm:mainfrom

DaoyuanLi2816:fix/remove-dead-vllm-rpc-timeoutDaoyuanLi2816/vllm:fix/remove-dead-vllm-rpc-timeoutCopy head branch name to clipboard