message: Update config_impl.cc
diff: @@ -61,8 +61,7 @@ HedgePolicyImpl::HedgePolicyImpl(const envoy::api::v2::route::HedgePolicy& hedge
  additional_request_chance_(hedge_policy.additional_request_chance()),
  hedge_on_per_try_timeout_(hedge_policy.hedge_on_per_try_timeout()) {}
  -HedgePolicyImpl::HedgePolicyImpl()
  - : initial_requests_(1), additional_request_chance_({}), hedge_on_per_try_timeout_(false) {}
  +HedgePolicyImpl::HedgePolicyImpl() : initial_requests_(1), hedge_on_per_try_timeout_(false) {}
  RetryPolicyImpl::RetryPolicyImpl(const envoy::api::v2::route::RetryPolicy& retry_policy,
  ProtobufMessage::ValidationVisitor& validation_visitor)
  