message: remove unneeded files resulting from client keygen command
diff: @@ -11,23 +11,19 @@ use casperlabs_node::crypto::asymmetric_key::{PublicKey, SecretKey};
  use crate::{common, Subcommand as CrateSubcommand};
  -const ACCOUNT_ID_BASE64: &str = "account_id_base64";
  -const ACCOUNT_ID_HEX: &str = "account_id_hex";
  -const PUBLIC_KEY_BASE64: &str = "public_key_base64";
  const PUBLIC_KEY_HEX: &str = "public_key_hex";
  const SECRET_KEY_PEM: &str = "secret_key.pem";
  const PUBLIC_KEY_PEM: &str = "public_key.pem";
  -const FILES: [&str; 6] = [
  - ACCOUNT_ID_BASE64,
  - ACCOUNT_ID_HEX,
  - PUBLIC_KEY_BASE64,
  - PUBLIC_KEY_HEX,
  - SECRET_KEY_PEM,
  - PUBLIC_KEY_PEM,
  -];
  +const FILES: [&str; 3] = [PUBLIC_KEY_HEX, SECRET_KEY_PEM, PUBLIC_KEY_PEM];
  lazy_static! {
  - static ref MORE_ABOUT: String = format!("{}. Creates {:?}", Keygen::ABOUT, FILES);
  + static ref MORE_ABOUT: String = format!(
  + "{}. Creates {:?}. \"{}\" contains the hex-encoded algorithm tag prefixed to the \
  + hex-encoded key's bytes",
  + Keygen::ABOUT,
  + FILES,
  + PUBLIC_KEY_HEX
  + );
  }
  /// This struct defines the order in which the args are shown for this subcommand's help message.
  @@ -160,28 +156,8 @@ impl<'a, 'b> crate::Subcommand<'a, 'b> for Keygen {
  panic!("Invalid key algorithm");
  };
  let public_key = PublicKey::from(&secret_key);
  - let account_id = public_key.to_account_hash().value();
  - write_file(
  - ACCOUNT_ID_BASE64,
  - output_dir.as_path(),
  - base64::encode(&account_id),
  - );
  - write_file(
  - ACCOUNT_ID_HEX,
  - output_dir.as_path(),
  - hex::encode(&account_id),
  - );
  - write_file(
  - PUBLIC_KEY_BASE64,
  - output_dir.as_path(),
  - base64::encode(public_key.as_ref()),
  - );
  - write_file(
  - PUBLIC_KEY_HEX,
  - output_dir.as_path(),
  - hex::encode(public_key.as_ref()),
  - );
  + write_file(PUBLIC_KEY_HEX, output_dir.as_path(), public_key.to_hex());
  let secret_key_path = output_dir.join(SECRET_KEY_PEM);
  secret_key
  