message: Remove Default from cosmwasm_vm::testing::MockQuerier
diff: @@ -140,7 +140,7 @@ pub fn mock_env<T: Api, U: Into<HumanAddr>>(api: &T, sender: U, sent: &[Coin]) -
  /// MockQuerier holds an immutable table of bank balances
  /// TODO: also allow querying contracts
  -#[derive(Clone, Default)]
  +#[derive(Clone)]
  pub struct MockQuerier {
  querier: StdMockQuerier,
  }
  