message: remove custom Debug impl for Exec_Config
diff: use std::{fmt, iter};
  use datasize::DataSize;
  -use hex_fmt::HexFmt;
  use num_traits::Zero;
  use rand::{
  distributions::{Distribution, Standard},
  @@ -216,7 +215,7 @@ impl Distribution<GenesisConfig> for Standard {
  }
  }
  -#[derive(Clone, PartialEq, Eq)]
  +#[derive(Clone, Debug, PartialEq, Eq)]
  pub struct ExecConfig {
  mint_installer_bytes: Vec<u8>,
  proof_of_stake_installer_bytes: Vec<u8>,
  @@ -287,22 +286,6 @@ impl ExecConfig {
  }
  }
  -impl fmt::Debug for ExecConfig {
  - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
  - write!(
  - f,
  - "validator_slots: {}, mint_installer_bytes: {:10}, proof_of_stake_installer_bytes: {:10}, standard_payment_installer_bytes: {:10}, auction_installer_bytes: {:10}, wasm_costs: {:?}, accounts: {:?}",
  - &self.validator_slots,
  - HexFmt(&self.mint_installer_bytes),
  - HexFmt(&self.proof_of_stake_installer_bytes),
  - HexFmt(&self.standard_payment_installer_bytes),
  - HexFmt(&self.auction_installer_bytes),
  - &self.wasm_costs,
  - &self.accounts,
  - )
  - }
  -}
  -
  impl Distribution<ExecConfig> for Standard {
  fn sample<R: Rng + ?Sized>(&self, rng: &mut R) -> ExecConfig {
  let mut count = rng.gen_range(1000, 10_000);
  