message: Removing histogram from common/metrics/src/op_counters.rs
  Closes:
  Approved by: bmwill
diff: @@ -96,11 +96,6 @@ impl OpMetrics {
  self.peer_gauges.with_label_values(&[name, remote_peer_id])
  }
  - #[inline]
  - pub fn histogram(&self, name: &str) -> Histogram {
  - self.duration_histograms.with_label_values(&[name])
  - }
  -
  pub fn duration_histogram(&self, name: &str) -> DurationHistogram {
  DurationHistogram::new(self.duration_histograms.with_label_values(&[name]))
  }
  