message: [cluster-test] Remove k8s_ prefix from commands
  Closes:
  Approved by: ankushagarwal
diff: @@ -98,9 +98,9 @@ struct Args {
  pub emit_to_validator: Option<bool>,
  #[structopt(long, default_value = "1")]
  - pub k8s_fullnodes_per_validator: u32,
  + pub fullnodes_per_validator: u32,
  #[structopt(long, parse(try_from_str), default_value = "30")]
  - pub k8s_num_validators: u32,
  + pub num_validators: u32,
  #[structopt(long)]
  pub enable_lsr: bool,
  #[structopt(
  @@ -436,12 +436,12 @@ impl ClusterUtil {
  .expect("Failed to get workspace")
  );
  let mut instance_count =
  - args.k8s_num_validators + (args.k8s_fullnodes_per_validator * args.k8s_num_validators);
  + args.num_validators + (args.fullnodes_per_validator * args.num_validators);
  if args.enable_lsr {
  if args.lsr_backend == "vault" {
  - instance_count += args.k8s_num_validators * 2;
  + instance_count += args.num_validators * 2;
  } else {
  - instance_count += args.k8s_num_validators;
  + instance_count += args.num_validators;
  }
  }
  aws::set_asg_size(instance_count as i64, 5.0, &asg_name, true, false)
  @@ -449,8 +449,8 @@ impl ClusterUtil {
  .unwrap_or_else(|err| panic!("{} scaling failed: {}", asg_name, err));
  let (validators, fullnodes) = cluster_swarm
  .spawn_validator_and_fullnode_set(
  - args.k8s_num_validators,
  - args.k8s_fullnodes_per_validator,
  + args.num_validators,
  + args.fullnodes_per_validator,
  args.enable_lsr,
  &args.lsr_backend,
  current_tag,
  