message: Fix warning log condition.
  Summary: This was just totally wrong. It's expected that we'll get multiple confirmations for the client sometimes, since either a HandshakeDone or 1-rtt ACK can confirm.
diff: @@ -99,15 +99,11 @@ void ClientHandshake::doHandshake(
  }
  void ClientHandshake::handshakeConfirmed() {
  - if (phase_ != Phase::OneRttKeysDerived &&
  + if (phase_ != Phase::OneRttKeysDerived && phase_ != Phase::Established &&
  *conn_->version != QuicVersion::MVFST_D24) {
  - if (phase_ == Phase::Established) {
  - LOG(WARNING) << "Handshake was already established";
  - } else {
  LOG(WARNING)
  << "Handshake was expected to be in the OneRttKeysDerived phase";
  }
  - }
  phase_ = Phase::Established;
  }
  