message: Remove useless let-if sequence
diff: @@ -1431,7 +1431,6 @@ impl Connection {
  /// Add frames to the provided builder and
  /// return whether any of them were ACK eliciting.
  - #[allow(clippy::useless_let_if_seq)]
  fn add_frames(
  &mut self,
  builder: &mut PacketBuilder,
  @@ -1441,13 +1440,14 @@ impl Connection {
  now: Instant,
  ) -> (Vec<RecoveryToken>, bool) {
  let mut tokens = Vec::new();
  - let mut ack_eliciting = false;
  - if profile.pto() {
  + let mut ack_eliciting = if profile.pto() {
  // Add a PING on a PTO. This might get a more expedient ACK.
  builder.encode_varint(Frame::Ping.get_type());
  - ack_eliciting = true;
  - }
  + true
  + } else {
  + false
  + };
  // All useful frames are at least 2 bytes.
  while builder.len() + 2 < limit {
  