fix(cli): simplify service registration lease (#37576)

Co-authored-by: Dax Raad <826656+thdxr@users.noreply.github.com>

packages/client/src/service.ts

@@ -50,6 +50,4 @@ export type Info = {
   readonly pid: number
   /** Private service password, when authentication is enabled. */
   readonly password?: string
-  /** Registration generation used to resolve owner write races. */
-  readonly startedAt?: number
 }