message: Remove condition that will never be active
  Remove check if `prev_estimate_` is less than 10 us since it can never
  be less than 1 ms.
  Cr-Commit-Position: refs/heads/main@{#37745}
diff: @@ -234,17 +234,15 @@ TimeDelta JitterEstimator::CalculateEstimate() {
  TimeDelta ret = TimeDelta::Millis(retMs);
  - constexpr TimeDelta kMinPrevEstimate = TimeDelta::Micros(10);
  + constexpr TimeDelta kMinEstimate = TimeDelta::Millis(1);
  constexpr TimeDelta kMaxEstimate = TimeDelta::Seconds(10);
  // A very low estimate (or negative) is neglected.
  - if (ret < TimeDelta::Millis(1)) {
  - if (!prev_estimate_ || prev_estimate_ <= kMinPrevEstimate) {
  - ret = TimeDelta::Millis(1);
  - } else {
  - ret = *prev_estimate_;
  - }
  - }
  - if (ret > kMaxEstimate) { // Sanity
  + if (ret < kMinEstimate) {
  + ret = prev_estimate_.value_or(kMinEstimate);
  + // Sanity check to make sure that no other method has set `prev_estimate_`
  + // to a value lower than `kMinEstimate`.
  + RTC_DCHECK_GE(ret, kMinEstimate);
  + } else if (ret > kMaxEstimate) { // Sanity
  ret = kMaxEstimate;
  }
  prev_estimate_ = ret;
  